I think a lot of people look at Matt Nagy and think that Trubisky was saddled with a bad coach. He played really well in the preseason, and I think that combined with Nagy not doing well after moving on from Trubisky told some people that maybe it wasn't Trubisky. I saw a lot of tweets that praised how well he played in Chicago despite bad coaching this year. Something along the lines of "Wow, I can't believe Trubisky was able to throw xxx touchdowns in this offense." When critiquing how bad Nagy was.