I thought the extension was okay, and figured even if he missed one full year, it would be worth it, if he remained Chris Freakin' Sale. Sadly, he has not, so far, but I am not writing this guy off.
I still think he can come close to what he was, if he can just stay healthy. His more recent injuries are not related to the arm, so that's somewhat encouraging, but it is way past time he starts doing something.