Michigan
133/141
IF Cannon does not transfer out, which is a large if, one of him, Ragusin, or Lemley will need to sit (or Redshirt).
149/157/165
Gilcher, Mantanona(x2), Mattin, Cooper, and Gates are all top tier potential talents and two of them will ride pine unless one shrinks down (while growing) or grows in to 174lbs. I wouldn't be surprised to see it be 149 - Gates, 157 - Gilcher, 165/174 - Mantanona (x2) in two years, but they need to get there first. That seemingly leaves Cooper the odd man out? Not sure. Gates might be. Also, Lemley might grow more (or perhaps he heads back down to 133...? Not sure).
197/285
You have Walters and Jenkins right now for 285, even if Walters is a 197lber - Cardenas is there. Next year there will be Walters, Jenkins, Veazy, Sahakian, and Correa in the 197/285 range. I had said before, and I will reiterate: Veazy needs to plan on descending towards 184lbs now if he wants a spot. One of Walters, Sahakian, and Correa will not be starting.
These are all not taking the portal in to account.