Defensive rebounding is what killed the Illini yesterday. Brad said in the postgame that they figured Edey on Rodgers would be a thing, but it's a hard thing to practice because they just don't have someone that big, so they didn't practice it enough to deal with it better.
Otherwise, they neutralized Loyer, Braden Smith was managed pretty well, Edey was managed as well as could be, they just weren't up for anything else, and just could not stop Purdue from getting second chances, particularly early on. Sure, Purdue shot lights out in the first half, but it came back to normal by the end, it was just too big of a deficit to recover from.