Derek Carr is still top ten in QBR this season per ESPN
Carr and almost any other quarterback who came in were never going to stand a chance with many after many felt Winston never got a fair shot, even though he continuously showed he was no more than a backup quarterback and not many teams had any interest in him.
Not that Carr has been great, but he has been pretty much exactly what we knew he would be. He has played "ok" while playing for what is statistically one of the worst head coaches in NFL history.