I think that when it comes to broadcasting, offensive linemen may be the best position for doing play by play or commentary during games.
Their size tends to give them deeper voices, the good ones seem to be more cerebral and the OL position brings more humility and a team first attitude. I’d take a guy like Big Whit over a Brady or Manning any day if I have to listen to them explain a football game.
I hate to say it, but even McVay’s voice, extensive detail, and often excited pace when talking about football would get annoying.
I guess it’s a fine line between having too much to say and having too little to say. But even the smarter ones can come across as Captain Obvious. Dan Fouts comes to mind.