He's used that line multiple times about all sorts of coaches he thinks are mediocre.
Cowherd is either an idiot or a troll, but he's right about some things, including when he talks about the top-to-bottom coaching in the Big 10 currently being better than coaching in the SEC.
Clay Travis also falls in that same category (but is funny and more entertaining) but he has a great line about how there are some big time college coaches who would be successful and millionaires in other endeavors besides coaching. Guys like Saban fall in that category. There are lots of other coaches, like Jimbo Fisher, Orgeron, and I think even Butch who would be high school PE teachers making $45k/year or selling phones at Verizon if they couldn't coach college football.