You're making the claim that a school like Michigan is stashing a "kid who maybe is going to Boise State or even ISU" off of scholarship. And I simply ask for an example of that claim. I brought you evidence of some of their announced walk-ons, and the scholarship offers they turned down to attend Michigan, and you say "No, not those..."
You're making a pretty significant claim, but when it comes to evidence, all you've got is "90 > 85". Sure seems like you're speculating on something that you think could happen, rather than something that actually is happening.