Going 1-4 over the previous 5 weeks isn't enough evidence for some sort of coaching change?

Kamara isn't defending anything and has been actively vocal about playcalling.
Most of Kamara’s statements were over interpreted in favor of PC being the target.

“We just run the plays that are called.”

Look at that play that MT points out. They ran the play that was called, but Carr did his own thing and went for a hero ball throw.