Ok so tell me if I get this right. Here are the basics I found online, which I'll try to spell out below...
So plain old IR, you can put people on at any time, and you can have 100 guys on IR, but that's out-for-the-year, simple IR. Can't-come-back IR.
This is no good for Thornton, where you know you want him back.
Then there is IR designated to return. You can use this starting August 31 ( Day after the final roster cutdown to 53, which is at 4p.m. Aug. 30)
You have to keep him on the final 53, IR him, then designate him -- so he DOES count against the final 53, just for a day (same can apply to up to 8 designated-to-returns, though realistically you would want to hoard those designations). Then
after that process, you have his roster spot to use on a roster cut. Then if the guys that stick around are good, you are reportedly sicker
Is that how this works? So he'll still be on the 53, but a day later, he goes to IR and his spot opens on the 53...?