I will be happy in a couple of years when the 'a' word is a thing of the past.
I get the desire to clear cap space, but Green seems like the type of guy that a team under the cap would love to absorb at least for 'free' (the token top 55 protected draft pick). He still has value and is still young enough to produce at a high level. Amnestying him (if this were actually a possibility) would seem like a total waste for the owners.