What do you think Hoodie?
My understanding is if you are on IR you are done for the year. Period. No trade. No release. Just collect your paycheck.
Teams do bury healthy or almost healthy players on IR for year. But it is not allowed, "cheating" if you will, so it requires cooperation of the player. "Here is the deal, you ain't ready for the NFL, you got two choices: we cut you and you can go work for UPS or we will play $300,000+ and you spend a year working out at our facilities with our trainers, watching film etc. And then you get another shot at training camp next year to make the team" "Man my ankle hurts" "Good boy"
If Will Allen ain't hurt or has a prognosis of being healthy week 2, he has a pretty good grievance that team should have released him or saved him a roster spot, and might win a grievance. OTOH if he would be out until week 12 that grievance would likely lose as the Dolphins are pretty justified.