Well the RB coach was fired too and he was a guy who was very tight with Gurley. So I don't have any knowledge of what went down but I am guessing there was probably some behind the scenes drama. Because especially in the first half of the season Gurley was leaving some yards on the field that's for sure.
I think McVay is a good example of how it's going to be done in the future. Get in that ass behind the scenes, but to the press and people watching it's all hugs and kisses.