I wonder what goes on in those crew meetings behind closed doors that nobody sees? You think the pitcrew sticks with TG because they are just as lazy as he is?
Remember Ryan's background and degrees, he is certainly no idiot. There has to be a reason why Tony gives him so much credit for that knowledge and why Tony says Ryan has to dumb it down for him from time to time.
It has got to be hard when you are a CC and your driver knows more than you do.