Which argues the point that you cannot neglect the surrounding cast. Would Mahomes look as good on the Bears and Trubisky better on the Chiefs...given the receivers on each of these teams?
Folks like to argue that Brady has always played with a bunch of "no names" and he makes them look good. Well...not discounting Brady's obvious talent...their offense was very ordinary this year until he got Edelmann back. It seems the great QBs have always had their "go to" guys to make plays. Kelly had Andre, Rothlesberger has Brown, Mahomes has Tyreek Hill and Kelce, etc.
Again...I'm not discounting the obvious talent of these QBs, but the talent surrounding them does matter.