Pete Carroll and Chip Kelly were never a good fit to work together, and it should have been obvious to everyone involved.
As Pete Carroll assembled his initial Las Vegas Raiders coaching staff, the hiring of Chip Kelly as offensive coordinator seemed odd. The type of offense Carroll favors, for better or worse, simply did not seem to align with Kelly's history.
Before Kelly was fired after Week 12's loss to the Cleveland Browns, there were signs of a strained relationship between him and Carroll.