You seem stuck on a false belief in JB being above average and you don’t seem willing to believe it when others point out that even with all his weapons healthy, JB was not performing well at all. He just isn’t an average QB, he just isn’t. He will never carry a team to wins, he needs lots of help. I will also add that I don’t think his OC has helped him with schemes either. He is still trying to fit him into the Luck Passing scheme. It’s not good for JB though.
As of now I am actually not a Chad supporter (never have been) nor do I think JB has proven to be a franchise QB either but I do think JB is above average. Having said that, our season is clearly over so I would play Chad these last 3 games just to see what he has, It wouldn't hurt a thing and JB can rest his knee and get healthy.