Brian Kelly, either with or without direction from above, sent a seismic shock through this season when he dismissed Brian VanGorder as defensive coordinator just four games in. I agree with the move – it was either now or a slow, agonizing death march to the same point in December – but still, tossing a coordinator mid-season is somewhat unusual in college football in general and particularly at Notre Dame. Kelly tabbed defensive analyst Greg Hudson to fill the interim defensive coordinator role, and noted that Hudson and every other coach, including himself, is on “a very public interview” for the rest of the season. Brian Kelly will most likely be safe after Jack Swarbrick’s recent stronger-than-the-Dreaded-Vote-of-Confidence vote of confidence, but it’s just as likely that Greg Hudson won’t be the long-term answer at defensive coordinator. Whither Irish fortunes, then?

Gauging the Field

When we look at the college landscape, the big defensive coordinator names are easy to pick out: Brent Venables. Jeremy Pruitt. Dave Aranda. John Chavis. Now, take each one of those guys and cross him off your list (well, except maybe for Aranda, but we’ll get to that). As easy as they are to name, they’re just as unlikely to leave their current school – respectively, Clemson, Alabama, LSU, and Texas A&M. Sure, occasionally you get a guy like Chavis making a lateral move from one marquee program to another, but in the past it’s usually been for a big pay increase, and with what top assistants make right now that incentive isn’t likely to be out there for anyone. Notre Dame is willing to pay market value – VanGorder was making $1.1 million per year, while Chavis reportedly is the top-paid coordinator at $1.5 million – but they’re not going to swoop in and outbid a fellow blue blood.

The key then is to grab these guys before it’s obvious that they’re the crème de la crème by spotting someone who seems likely to take the next step. To that end, I skipped the biggest names (except for Aranda, but seriously man, we’ll get to that) and dug a little deeper to see who might be the diamond in the sort-of rough; most of these guys are hardly unpolished, but they’re not top of mind for most college football fans. I looked at some advanced stats, including defensive FEI, havoc rate (how much a defense tends toward disruption), and success rate (how efficient a defense is at preventing long drives). Havoc rate and success rate are only published for the last two seasons, which is why you’ll see me quote just 2014 and 2015 information for them. I also looked at trends in traditional stats, like scoring defense, and soft factors such as defensive scheme, career path, and coaching background.

The Semi-Official 18S Candidate List

Pete Kwiatkowski, Washington:

In 2013, Steve Sarkisian’s last year at Washington, the Huskies ranked a very respectable 24th in defensive FEI. When Chris Petersen took the job in 2014 and brought Kwiatkowski with him from Boise State, the defense went from very respectable to excellent, ranking 11th in 2014 and 2nd in 2015. This year, they rank 9th in defensive S&P+ and 10th in defensive FEI. Not too shabby. Kwiatkowski also had three top-15 defenses in his five years as defensive coordinator at Boise State. He’s young and he’s an active recruiter. What’s not to like? Well, he has been with Petersen since 2006 and, aside from a one-year stint as an assistant at top JUCO program Snow College in Utah, he has spent his entire life in the Northwest. So it seems unlikely that he could be pried away from Seattle, but it’s worth a phone call at least.

Alex Grinch, Washington State:

We’ll stay in the Evergreen State but roll over to slightly less picturesque Pullman to check out Alex Grinch slaving away on the Good Ship Leach. Grinch is only 36 and has been a college coach for 14 years already, and along the way, he has put up some big numbers and worked with some big names. He won three titles in four years as a player at Division III icon Mount Union, then started his coaching career immediately as a grad assistant at Missouri for Gary Pinkel, who also happens to be his uncle. He then caught on at New Hampshire coaching defensive backs, including future Pro Bowler Corey Graham, opposite then-offensive coordinator Chip Kelly. Kelly called him “one of the best teachers I’ve been around.”  Grinch headed to Wyoming for three years as their secondary coach, where he mentored future Pro Bowl safety Tashaun Gipson (sense a theme?). He returned to Missouri as safeties coach for three years, then made the jump last year to Wazzu, where his defenses once again go against one of the nation’s most prolific spread offenses in the country in practice every week.

The year before Grinch arrived, the Cougars ranked 110th in defensive FEI. Last year, they were 44th. This year, they’re 16th. He preaches disruption and turnovers, and his defenses follow through. Color me impressed. I think Grinch is the most Sanford-like candidate out there.

Tony Gibson, West Virginia:

Gibson has had a very interesting career path, to say the least. The West Virginia native worked his way up through smaller schools before finally getting his big break with Rich Rodriguez in Morgantown. Rodriguez brought him along to Michigan; after that all fell apart, he spent a year at Pitt with Todd Graham, but he didn’t follow Graham to Arizona State. No, instead he reunited with Rodriguez in Arizona, where after one season he surprised the Wildcats by going back to West Virginia. Still with me? He was promoted to defensive coordinator in 2013, his second year back with the Mountaineers.

That’s somewhat nomadic and raises an eyebrow a bit, but what really jumps out is his performance on the field. From 2013 to 2015, West Virginia ranked 82nd, 33rd, and 7th in defensive FEI; this year, they’re ranked 12th. From 2014 to 2015, they ranked 81st and 17th in havoc rate and 13th and 4th in success rate. Gibson has the West Virginia defense trending up in a big, big way. Consider me on the Tony Gibson Hype Train.

Todd Orlando, Houston:

Orlando’s future is likely handcuffed to that of his boss, head coach Tom Herman, who is about the hottest name on armchair athletic directors’ minds right now. Orlando followed Dave Aranda at Utah State in 2013, and more or less maintained the levels that Aranda had established. He joined Herman last year in Houston and produced a significant improvement over the Cougars’ previous year – from 77th to 23rd in defensive FEI and from 72nd to 25th in havoc rate. The catch, of course, is that we have just the one year at Houston and we don’t know how much of his success at Utah State was really Aranda’s. Even with the recent blowouts at the hands of Navy and SMU, Houston ranks 26th in defensive S&P+ and 28th in defensive FEI. On the other hand, they got steamrolled by Navy and SMU.

There have been rampant rumors over the last couple of days that Herman is headed to Texas; if that’s true, there’s a very good chance that Orlando will go with him. If that ultimately goes nowhere, though, LSU could well pursue Herman vigorously, which could make things very interesting. Speaking of which…

Dave Aranda, LSU:

Dave Aranda is probably the crown jewel of the defensive coordinator market, and he’s hardly a diamond in the rough. Aranda built a dominant defense in his one year at Utah State, taking them from 70th in defensive S&P+ in 2011 to 10th in 2012, and continued his impressive work at Wisconsin when he followed head coach Gary Andersen to Madison. In three seasons under Aranda, the Badgers ranked 10th, 29th, and 7th in defensive S&P+. This year, even with all the unrest in Baton Rouge, he has LSU ranked 8th in defensive S&P+ and 3rd in defensive FEI.

Aranda’s availability hinges on who LSU’s new coach will be and whether he’ll want to retain Aranda or bring his own guy in. It’s worth noting that Aranda has been in a similar situation before – Gary Andersen bolted Wisconsin for Oregon State after one season, and Paul Chryst retained Aranda when he built the new Wisconsin staff. It’s also worth noting that LSU gave Aranda a contract that is completely independent of Les Miles’s status. If LSU hires Herman, that’s where things get very interesting. Herman and Orlando have done some good things, but in addition to Aranda’s elite credentials he and Herman were kinda-sorta college roommates – no, we’re not kidding – and could be open to a reunion. One thing is certain: if LSU nabs Herman, a very good defensive coordinator will be available.

Marcel Yates, Arizona:

Yates is in his first year at Arizona, which might make you wonder how he made this list. Well, I’m glad you asked… Yates made a name for himself as a secondary coach at Boise State from 2003 to 2011 before heading to Texas A&M for two seasons in the co-defensive coordinator role, where he was ultimately replaced by Chavis. When Bryan Harsin took over in Boise in 2014, Yates headed back to his alma mater and filled the defensive coordinator role that Kwiatkowski had just vacated. In his two years in Boise, Yates took Kwiatkoski’s disruptive and efficient defenses and made them even more so, turning in defensive FEI rankings of 23rd and 14th, havoc rate rankings of 14th and 4th, and success rate rankings of 24th and 10th. Harsin hired Yates and Mike Sanford at the same time, so there’s a substantial connection to the current Irish staff. Would that connection – and most likely a substantial raise – be enough to pull Yates away from his new job in the desert?

Mike Elko, Wake Forest:

Shortly after VanGorder’s dismissal, Mike Elko’s name surfaced seemingly out of the blue on a couple of Notre Dame message boards. Rivals’s Lou Somogyi, about as respected a Notre Dame writer as you’ll find, mentioned him, as did Barton Simmons, one of 247Sports’s national coverage guys. Conspiracy theories immediately cropped up – Swarbrick must have leaked something to them! Why else would they mention this guy? Well, after looking into it, I can assure you that they mentioned him because he’s good. He’s not a household name for fans yet, but he’s well thought of within the coaching ranks. In his two-plus years at Wake Forest, he has turned in defensive S&P+ rankings of 37th, 60th, 27th. Further, he had the Deacons ranked 24th in havoc rate in 2014 and currently has them ranked 18th, so he likes to be disruptive.

Elko is at his fourth different program with Wake Forest head man Dave Clawson, having worked with him at Fordham, Richmond, and Bowling Green previously. There’s a decent chance that Elko is Clawson’s Denbrock, but much like Kwiatkowski, it couldn’t hurt to kick the tires.

Tim DeRuyter:

DeRuyter was just fired as Fresno State’s head coach after an abysmal 1-7 start to this season put the exclamation point on a steady three year decline from his first two seasons there, when he won the Mountain West title both years. DeRuyter spent two years at Texas A&M as Mike Sherman’s defensive coordinator, taking the Aggies from 104th in scoring defense the year before he arrived to 34th in his first season. He served as Air Force’s defensive coordinator the three years before that, taking the Zoomies from 78th in scoring defense before his arrival to 10th in his final season – a season that ended with a bowl game demolition of Kevin Sumlin’s Houston squad, in which the cadets held the vaunted Cougars offense to 222 passing yards and forced six interceptions. On the downside, Texas A&M took a big dip in his second season, and Fresno State trended hard in the wrong direction, dropping steadily from 17th in defensive S&P+ and 11th in defensive FEI in 2012 to 84th and 105th, respectively, in 2015. Was he just not a fit as a head coach? Or is his peak behind him?

Nate Woody, Appalachian State:

Appy is forever close to the hearts of Irish fans everywhere thanks to their stunning upset of Michigan in 2007. I’m contractually obligated to include this every time I talk about Appalachian State:

Nate Woody was at Wofford back then, but fret not – he’s done some pretty interesting things at Appalachian State since coming on as defensive coordinator in 2013, their last year of FCS football. Their defense has fared better in the drive-based FEI than the play-based S&P+; couple that with Woody’s preferred 3-4, and it’s tempting to infer that he favors a bend-but-don’t-break style. I don’t know if that’s the case, but even so, his results have been impressive – from 83rd in defensive FEI in 2014 to 11th last year, and from 103rd in S&P+ defense in 2014 to 43rd last year. This season, his defense gave up 13 points in regulation to Tennessee before falling in overtime. The main question with Woody, who had spent his entire career in lower divisions before Appy moved up to FBS, is whether he’s ready for the big stage.

Jon Heacock, Iowa State: 

Like Marcel Yates, Heacock is in his first year at his current school after posting sterling results at a lesser (?) program – in this case, Toledo. Unlike Yates, Heacock is in the latter phase of his career and perhaps more likely to stick around. Heacock spent a good chunk of his career at Youngstown State, mostly as Jim Tressel’s defensive coordinator and then as Tressel’s replacement in the head job. He joined Toledo in 2014 after one year in Purdue on Darrell Hazell’s staff, so obviously he’s willing to take a step up quickly. In his two years at Toledo, he took the Rockets from 97th to 8th in defensive FEI, 59th to 7th in havoc rate, and 80th to 31st in success rate. The one concern is that he doesn’t have much Power 5 experience and in his two Power 5 stops – one year as DB coach in Purdue and now a partial year as DC at Iowa State – his results have been, charitably, unimpressive. On the other hand, we’re talking about Iowa State and Purdue here…