I didn't see the game but I was going to ask about this in reference to tiers. Maybe PU is ok in tier-2?
What about Wisconsin? The last two games (loss to WKU, home loss to MN) could be a blip but if they are a larger indication then the Badgers may not belong in tier-2.
Can't speak to Wisconsin, as I haven't really watched them.
Purdue is still an enigma. I can understand the losses to pretty much everyone except Notre Dame. The other 4 losses were to Kenpom 5, 8, 17, and 29, all either on the road or a neutral court. Notre Dame (68 in Kenpom), however, was the bad loss, where the team just looked completely out of it and disjointed. But perhaps that's just an artifact of the Crossroads Classic, which has been a house of horrors for Purdue ever since they started it.
After the Notre Dame game, Purdue has played Ohio, Belmont, and Iowa. All respectable opponents, with Ohio being ~165 in Kenpom, Belmont barely inside the top-100, and Iowa at 44. All three were comfortable wins.
So for now, the Notre Dame loss looks like a little of an aberration. And the team does look like they're putting things together.
Obviously I still think we need to take a closer look over the next few weeks. I'm not expecting much @MSU, but @Wisconsin is looking far more winnable than you'd think. If Purdue either beats Wisconsin at home, or at the very least looks really good in a loss, I think tier-2 is justifiable.