right: Will Moeller/Daily

Nine months ago Michigan fans were suspicious of both of their West Virginia coaching heists. Today one is sitting next to Billy Packer and Jason Whitlock in a suit; the other is a season away from establishing himself for the long haul. Both undertook program-changing measures after a disappointing start, but only one successfully delegated his way to success.

You know who is who. Rich Rodriguez:

• fired Scott Shafer after one year as defensive coordinator,
• hired retread Greg Robinson, and
• forced him to run a 3-3-5-ish defense that incorporated the 3-4 and 4-3 with freshmen everywhere.

He got the sad firing box.

John Beilein:

• literally fired or replaced every one of his assistants,
• hired two up-and-comers from smaller schools, and
• all but abandoned the 1-3-1 defense that was his trademark at West Virginia.

If he can wring the expected improvement out of his 46% freshman usage he'll have Michigan's basketball team in the Big Ten title picture for the first time since Fisher was run out of town.

Both coaches tweaked their specialty offense for different players. Rodriguez coaxed an NCAA-average performance out of true freshman Tate Forcier by relying on his scrambling ability in the pocket and using him as a decoy in the run game. (Or at least trying to—Tate had a bad habit of keeping the ball when his read said hand off.) He improved the offense further with sophomore-who-would-have-been-redshirt-freshman-if-Michigan-had-any-options Denard Robinson. Even the Robinson offense wasn't going back to the old Pat White well. Without a Slaton to put oomph in the read and with defenses far more prepared to deal with it these days, he implemented a rushing game that revolved around the quarterback instead of using him as a "gotcha" thunderbolt. He used the QB rushing staples to implement a terrifying play-action game that often saw receivers open by ten yards.

Terrible defense put Michigan in long-field situations (Michigan led the country in TD drives of more than 85 yards), there was no field goal kicking, and the inexperienced Robinson was a turnover machine. The thing was a bit rickety. It was erratic. It put too much load on Robinson's shoulders. It was also incredibly young and promised infinity when Robinson was old enough to cut out the turnovers. It finished #2 in FEI, which you know because I say it every ten seconds.

Beilein lost his only two upperclassmen from the immensely disappointing 2009 team and returned a collection of role players and youth. He had to know his best player was a point guard who couldn't shoot to save his life. He still had a perimeter four and a spread-the-court offense, but he implemented a ton of ball screens that gave defenses a choice between open threes from guys who shoot at a 38% clip or getting pick-and-rolled to death by Morris and Jordan Morgan. Morgan shot 63% as a result and Michigan vastly exceeded expectations.

This lived up to their rep. Both were regarded as innovators. "Genius" is definitely not a word you want to throw around when you're talking about coaches but their peers seemed to regard Beilein and Rodriguez as people you want to talk to. Beilein doesn't talk but gets the most votes when his peers are asked to judge solely on coaching acumen; Rodriguez does, so he pops up at Oklahoma and his coaches get snapped up two seconds after they're let go. Carr's coaching tree is Brady Hoke and Scot Loeffler, end of story. It's tough to throw a rock in college football without hitting someone inspired by or directly associated with Rodriguez.

But he's not here because he couldn't let go. Of all the numbers associated with his tenure at Michigan this is by far the most damning:

It's the 37 next to Syracuse in the FEI defense ratings. That is a schedule-adjusted, I-AA-ignoring measure of defensive competency featuring Scott Shafer and absolutely no talent a few spots off the defenses of Michigan State and Wisconsin. Last year (Shafer's first) they were 72nd, the year before that 80th when Greg Robinson was the head coach and functional DC.

Maybe that wasn't possible here what with Never Forget…

…and all that. But we do know Shafer, a very good MAC coordinator who Harbaugh picked up and then made Syracuse better than anyone thought possible very quickly, is a good coach. And we know he was undermined and pushed out. Evidence suggests Greg Robinson is a terrible coach but he was undermined, too, and instead of a vaguely worse defense than two BCS teams coupled with Denard Robinson—good for 8-4 at least—we got something that was literally the worst ever in various categories.

Beilein had already scrapped the 1-3-1 before the total program reboot and was rewarded with an uptick in his Kenpom numbers from 67th to 53rd. It's a lot harder to tell who's responsible for what, but Beilein seemingly felt everything was insufficient and blew it all to hell. He still teaches the 1-3-1 but only uses it on occasion; he's left the defense mostly to his assistants. His reward: 35th nationally this year. That's better than his previous three years at Michigan. It's better than he ever did at West Virginia, because he knew what he didn't know.

Rodriguez's problem was never his selection of defensive coordinators, it was his refusal to trust them to do their jobs. The thing about Hoke is this: he does. At SDSU he hired Rocky Long to run a 3-3-5; Rocky Long ran a 3-3-5, and it was pretty good, and now he's the head coach. He hired Al Borges to run a passing-oriented West Coast offense; Borges ran a passing-oriented West Coast offense that wasn't quite as good as Michigan's in FEI's eyes but was still top 20. If he "gets" anything it's that he's a former defensive lineman with a narrowly defined set of assets that does not include being a genius of any variety—he's never been a coordinator. So he's hired two guys with very long, very successful resumes to do that stuff for him. That's an upgrade over Rodriguez, who had one—himself. It's an upgrade over Carr, who had zero*.

When I am trying to be cheerful in the face of Hoke's indifferent record I think about the vagaries of MAC budgets and what Hoke did the instant he escaped them. Mattison is the third excellent hire Hoke's made. That's a trend, one that suggests he, too, knows what he doesn't know. Since I'm a Michigan fan I'm bracing for a fatal flaw, but at least it won't be the same one that sunk Rich Rodriguez.

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*[Ron English masterminded The Horror and does not count. Before his elevation at Michigan he had never been a coordinator. After he left he led the weak unit on the last Kragthorpe Louisville team and has started the slow process of dying at EMU. The only thing he's proven is that he can yell at several future NFL stars effectively.]

Title disclaimer: hate on Donald Rumsfeld all you want—just not here—but the bit about known knowns and known unknowns and unknown unknowns is a useful bit of language. Not intended to endorse or unendorse anything about Rumsfeld. Disclaimers uber alles.