He rubbed the wrong people the wrong way and came across as an uncoachable guy who thought he knew it all.

According to him he'd get this reaction for simply presenting ideas and asking questions. Frankly I believe his version of events but I digress.

Anyhow he got stuck in a lower card role so because of it. When he left he rebuilt himself and gained valuable experience. He made good on his potential.

Trust..... Bringing him in is a big deal.