Nick's talent was evident from the start, if you have an eye for talent. He can be off putting at times but he's an entertainer, he's smart, and he plays well with others. Those are 3 characteristics that a ton of sports personalities don't have...
He hasn't said he's going anywhere and as long as he wants to do this, he'll be around. He's gonna carry Fox Sports once Colin retires within the next decade (Colin just turned 61, and has hinted that he'll be transitioning away from his current role in sports, in the next decade). Nick is only 40, he still has multiple decades of doing this if he wants...
Broussard is also an entertainer who Fox Sports got the best out of him. He perfectly plays his role on this show. Sports fans are fickle and hate most talking heads

but as far as talking heads go, these guys are among the best at present...