but he is simply not ready at this point in my opinion.
Based on what?
I mostly base that assumption on his lack of success in the MAC regular season. Sure, he won the MAC tournament title and made a good run in the tournament, but he's finished 2 out of 4 seasons with a losing conference record, One mediocre 9-7 finish, and this year's 11-5 + run in the tournament.
Now imagine if he had been playing the likes of OSU, MSU, UM, IU, WISC, etc etc. He won't get to beat up on NIU and the likes anymore.
His conference record in the MAC is not impressive at all, at 34-30, nearly .500. His overall record is slightly better, but not as good as Bruce Weber's was even.
Sure, he has led your team to a good season this year, with a great finish, but it won't be so easy this year. He won't be able to win the B1G conference tournament like he did the MAC tournament for Ohio.
This is too big of a gamble for the U of I, which already has enough to deal with.