https://www.si.com/nfl/2018/11/29/g..._source=twitter.com&xid=socialflow_twitter_si
McCarthy is the play caller, but because Rodgers is so intelligent and such a good improvisational player, the quarterback has the green light to change plays on the field as he see fit. He does, so often that it can be hard for McCarthy to get into a rhythm as the play caller. McCarthy might call the same play three times in a game, without the play actually being run as he called it. And if McCarthy calls a play that Rodgers doesn’t like early in the game, that can sour the mood for the rest of the game. Several sources familiar with the inner workings of the organization say that it devolved into a competition over who can call the better play, and both want the credit when things go right.