Haven't seen it posted but Joel Klatt explained it beautifully on his podcast and on Cowherd two weeks ago

Transcript below:

Cowherd: “Ravens the best team in the NFL, Michigan looks like the best team in college football, what’s the connection?”

Joel Klatt: “The connection runs so much deeper than anyone actually realizes. It goes back to the Covid year when there was talk when Jim Harbaugh was going to be fired. Michigan wanted to walk away from Jim and restart and do something else. And they stuck with him and he took that reduced contract, and Jim’s move, his switch, was calling his brother. He said ‘hey man, I have to get it right and I have to beat Ohio State specifically’. And he called John and said ‘I need your defense, give me two guys’. And John gave him Mike MacDonald and Jesse Minter. John said ‘choose one’. Jim told John ‘I don’t want to choose, both of these guys are great, I can take either one’. John says ‘ well you gotta choose and the other will go coordinate at Vanderbilt’. So Jim chooses Mike MacDonald and MacDonald was the defensive coordinator at Michigan for 2021. Jesse went to Vanderbilt in order to get coordinating experience from that tree. Mike then goes back to Baltimore after 2021 to become the defensive coordinator. So what does Jim do? ‘ Give me the other guy’. And so he brings in Jesse Minter. And now Jesse Minter and Mike MacDonald are both coordinating the two best defenses in football. And they’re running a very similar if not the exact same scheme. And now what you’re starting to see in the NFL and college ranks is that people are chasing down this scheme. They all want a piece of what’s going on. And what’s going on is that they built a run front with their defensive tackles, they play hard edges on the outsides with those rush ends, and they got hybrid players in the middle of their defense - linebacker, nickel, and safety - with good solid cover guys on the edge. And that’s what they’ve built, both of them. And they’re eerily similar and you’ve seen them dominate both levels of football in the NFL and college. And it goes back to that covid year - Jim calling John and saying ‘I want your two best best and brightest young guys’ and John gave them Mike MacDonald and Jesse Minter."

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