I believe it was an interview with Eric McCoy on nof where he said that coming to a new team was very hard because you don’t know anybody and you have to learn a new environment and the new personnel and the new scheme, and other challenges as well. It takes time to learn tendencies of new players too. You could see that in all the early communication deficiencies between Carr and his receivers. Later in the season those began to go away. He became top 5 in the league at the qb position at that point. Also early in the season the o-line was getting him killed. He then battled injuries. Yes, Carr must play better, but I am more worried about Penning than him