Paul Chryst is one of the top 5 best coaches in the business.
Michigan has the supposed to be the best DC in college football in Don Brown, an above 50% Blue Chip ratio, a roster full of future NFL players & Wisconsin is taking them behind the woodshed with an old faishoned *** whooping.
Wisconsin wins because they're so extremely well coached & disciplined that if you don't show up 100% prepared you're going to get the sh*t beat out of you, because they don't beat themselves by playing smart mistake free football.
Harbaugh is just highly overrated, he's a great recruiter, but his record vs ranked opponents since being at Mich is well below .500 & his record vs B1G rivals is something like 2-7 in 4 years (never beat Oh St & only beat Mich St once) & as a game day coach always folds up vs equal level talent teams.
People gave him waaaaayyyy too much credit for his Stanford tenure, he was only 29-21 at Stanford & people accredit him as building their program, but people forget Stanford was good even back during the Bill Walsh era & made a return to prominence under Tyrone Willingham. David Shaw has had more success at Stanford than Harbaugh had, he's 83-28 as a HC with 3 Pac-12 championships & 5 division titles, all while handing out the least amount offers of any D-1 program & still sends high caliber players to the NFL on an annual basis.