T.J. Dillashaw got his chance because of Faber. I was at his last fight prior to him doing TUF, and it was only his 4th professional fight. Obviously he was good enough to be a UFC fighter, but without belonging to a major camp and having Uriah vouch for him I don't think he would have been there after 4 fights.
I think that's why it stung so much for Uriah when he left because he had invested a lot of time into T.J., promoted fights for him on the local level and got him his opportunity in the UFC. Just when that investment was about to pay off with a champion level paycheck coming in, T.J. decided to leave Alpha Male.