I think 6'5 is to tall for center in the WCO. From what I can gather line coaches don't like tall centers, especially in the WCO because the taller you are, the longer your arms are, and the longer your arms are the longer it takes the bell to get to the qb. not to mention, if the qb is only dropping 3 steps he will have a rather large obstacle obstructing his view.
he clearly wasn't happy with the new regime and is going to another well respected program and he will be taught by a good coach there. Good luck to him, hope it works out. I won't judge his atttiude though because I don't know what was said to him by Prince or how he was being treated. 2 sides to every story.