Therw are zero questions about our defense that carry any weight. There are a million about JIM'S offense. Let's be honest ..Michigan has been a 9 and 3 type program for most of 25 years or so. I will say rhat if Jim can't run the ball any better than we have against good teams , he and Michigan are a 4 and 5 loss team waiting to happen. When you play bully ball with average backs and below average olinemen you have problems .
I think there are some very legitimate questions as to whether your 2017 defense was actually great, or just solid/good
For example, Michigan's defense was really only good against the run when facing opponents in the Bottom 1/3rd of the Nation
If you compare how Michigan performed against the run when facing at least decent competition to how their 1st Opponent in 2018 (Notre Dame) performed:
Michigan (6 Games):
175 Yards/Game
4.4 Yards/Carry
2 TDs
Opponents Included: Ohio State, Penn State, Wisconsin, Michigan State, Minnesota, Maryland
Notre Dame (9 Games):
160 Yards/Game
4.25 Yards/Carry
1 TD
Opponents Included: Georgia, Stanford, LSU, USC, Miami, Boston College, Michigan State, Wake Forest, North Carolina State
Both of these teams return 9/11 starters on defense.
So I think it's fair to ask:
"Is Michigan going to be a great run defense in 2018, or just a decent run defense that has some real struggles against better competition"
The same goes for Notre Dame...who was actually a little BETTER than Michigan, on paper
Would you not call this a "Fair Question"?