Because M losses Marshall,Mone,Gary,Winovich - up front,Bush behind them,Long - Gone.Didn't that DB Kinnel lead the team in tackles?-Gone.Watson another DB was tied for team lead in interceptions - gone.Not being facetious when I say last years Buckeye offense might put up 100 on the new comers.Sorry I'm not buying.M is fortunate that it seems to be a lean year for conference offenses.So they shouldn't find themselsves looking thru their earholes too much.M Fans better hope JH keeps his mitts off the offense - that's where you're hanging your hat.I'm just not listening to the carnival barking about Don Brown's defense this season.Because any defensive stats will be fattened up on inept offenses
If there is one thing I have learned over time, a "ranked" defense doesn't mean much. I have found that typically highly ranked defenses tend to play ball control, "3 yards and a cloud of dust" football. It's easy to make your defensive stats look good when the opposing offense gets half of the possessions they normally would.
1994 Penn State is a great example. It was, perhaps, the best offense in college football history. I think they averaged less than 2 minutes per scoring drive. This gave opposing offenses more possessions, and more opportunities to score. Pundits claimed that the Penn State defense was average, but a closer look at the stats showed that Penn State's defense was actually pretty darn good. Especially when considering that the defense was typically on 2nd and 3rd string players shortly after halftime.
Similarly, a closer look at Michigan's 2018 stats shows that their defense was good, but not great. Certainly not top 5. More like top 20, POSSIBLY top 10, if you're feeling generous.
Gattis is from the Moorhead offensive school, and should provide a big play, quick strike offense. This means more possessions for opponents, and more points scored against. They will have more blowout wins and more time for the second string as well. I expect their defensive ranking to drop, but it is quite possible they will put a better defensive product on the field.