According to michael lombardi it all started at the end of last season and Pioli wanted to change things up vs the Raiders then going into the Ravens game and Haley wouldn't go for it. Wiess is said to have wanted to make changes earlier in the season and again it was Haley's way or the highway and we all know how that ended. As I said in another post and was corrected, if you include Chan being fired before the start of the season, we have had 4, count em, 4 OC's in 3 years, and you wonder why our offense is so bad....As it stands right now I am willing to bet we will have yet another OC next year.