Willis simply doesn't have enough of game tapes against decent/quality opponents to judge.
He might be closer to a Lamar Jackson for all we know.
With Lamar, I was able to watch him progress little by little each year he was in college.
Even though I don't prefer his style of play, I thought that with the recent changes in the pros (rules that protect the QB and favor the offense), I had said that if an NFL team is willing to tailor the offense to his skill set, they could have a certain degree of success.
They don't need top receivers, top RBs so they can dedicate their resources to build the defense.
The only trouble is the NFL is such an entertainment business nowadays, besides their cooperation with the betting houses, it's difficult to say what type of QB play (in conjunction with what level of defense) a team needs to be in contention year in and year out.
The betting, especially, is really screwing the game , IMHO.