Drake & Drew were control freaks, not coaches. Sklar wasn't either control freak nor coach. TTBOMK, Sklar never opened a mic.
As someone who learned very early that opening a mike to broadcast my own voice was a pretty miserable idea, I came to both realize the value of real sit talent (as I had none) and recognized that you did not have to be a successful jock or personality to know how to guide, train and reward someone who had those skills.
An analogous situation is the common error of promoting a good salesperson to the position of sales manager. Different skills, and some have both. But for those who don't, the promotion just destroys a good seller. Yet I have known a number of good sales managers who were not particularly good sellers themselves. Again, they knew how to get the best out of those who could sell.
And then there are the general managers who are about two levels above their competency level... I always enjoyed working in markets where that type of manager was in residence at the competition!