But I guess my point is that just because there are open scholarships available, you might already be heavy with young players at a position or in a certain unit. Iowa typically doesn't have linemen leaving early besides to the draft which they can plan for. Most Iowa transfers are from the skill positions looking for more playing time.
So, even though there are scholarships available, a team isn't going to load up on a certain unit. I presume they have a certain number they would like for their positions. Again, they seem to have a number of young guys as linemen and pretty full at those positions. I'm sure they were/are banking on getting them squared away to perform, but just hasn't happened yet.