That's the definition of situational tho, and was his point. He probably will cost more next year, but his performance is making it more likely he's only gonna get a fraction of what he got in his last contract.
They got him on the cheap this year. Sometimes a rental for someone who will be a FA is worth the squeeze, sometimes not. Adams wasn't worth what his situation called for, and the Jets pretty much got fleeced. He's done very little for them.