I wouldn't call DeBo's hiring a flop, but it's far from a "can't miss" situation, either. He's replacing Kevin Wilson, so it's difficult to say we're better there.
Like UT, IU has skill at RB and WR, though not on a level of Tennessee's, but they will enter next season with at least as many question marks on the O line as they ended 2016, given the loss of a consensus AA and two other seniors with double digit starts behind them.
Cronk had a nice year, but he was also overmatched too often, and the off season is big for him. Knight must heal up and, depending on the development of some of the younger guys, find a position. And the younger guys have to show that they can play. Again, it's extremely unsettled up there, and that's before anyone gets hurt.
And then the qb play must improve. I thought Lagow got way too much criticism this year, but he's not anywhere near the threat Joshua Dobbs was for the Vols. He must improve for IU to improve.
Finally, there's recruiting, which still lags most of the BiG. Can the new guys ramp that up? We'll see.