Derek Carr is still top ten in QBR this season per ESPN
The funny thing is that I think except for a few outliers who are convinced Carr is terrible and on the other side who are convinced Carr is elite, most of us agree on what Carr is, it's just that we are quibbling over if he should be called mediocre, good, or very good. Dude has been in the NFL for 11 years at this point he's the player he is. We are just arguing semantics.