The Rams got a good player to complement Henderson.
Keep in mind with all the players coming out in the draft next year the 4th round will be more like a late 2nd or 3rd rounder in this next draft.
BB knows this.
Happy for Michel that he will get a fresh start in a pretty good situation for him. While he has shown flashes (that playoff run ), considering his overall body of work + the fact the Patriots have an obvious stockpile of talent at the RB position, this is probably representative of his value.