As Bears fan, we all should be enjoying this ride. No QB is perfect halfway thru their 2nd season in the league.
Williams biggest issue from last year was taking too many sacks, and he has not only improved on that exponentially, he actually has become this magician avoiding sacks. So not only is he not taking unnecessary ones now, he is avoiding almost sure things.
It is still Year 1 in a new offense that is new for all players. They changed his stance, they have him playing under center and with play action more than he ever has in his life. Now it is the time to work on ball placement and accuracy. Once he improves there, he will be a top 10 QB until he retires.