Why should it be surprising that a coach was never a college or even high school jock himself?
Remember something: for most young males with an interest in sports, coaching is Plan B!
What I mean is, there are millions of little boys who dream of playing shortstop for the Yankees or pitching for the Dodgers. But there has probably NEVER been an 8 year old boy who dreamed of being manager of the Yankees or pitching coach of the Dodgers.
Millions of 8 year old boys fantasize about being LeBron James- no 8 year old boy dreams of being Stan Van Gundy or Mike Kryszewski.
Millions of little boys have Tom Brady or Eli Manning posters on their walls. Seen any kids with Nick Saban or Tom Coughlin posters?
Point is, little boys dream of being ATHLETES, not coaches. When do they START to think about becoming coaches? Whenever they start playing in a league where they’re just not very good. The sooner a kid realizes, “These other guys are just waaaay better than me, and I’ll never be good enough to compete with them,” the sooner they’ll turn to Plan B, and think about coaching.
Here’s an illustration of what I mean: Dan Fouts and Norv Turner are the same age. They were both star quarterbacks in high school. They both received scholarships to play at the University of Oregon. After that, their paths diverged drastically. Fouts was a GREAT quarterback, and went on to become a star in the NFL. Turner figured out that he’d never be good enough to start at Oregon, let alone in the NFL, so he started working his way up as a coach. He served as an assistant at a few colleges, then became a receivers coach for the Rams, gradually getting an offensive coordinator job with the Cowboys.
Now… is Dan Fouts SMART enough to be a pro football coach? SURE, he is… but by the time he retired, in his late thirties, Norv Turner had already put in years as a coach and gained valuable experience. VERY few pro teams will give a head coaching to a man without years of experience. Is a longtime star likely to spend years doing the grunt work of an assistant coach or minor league coach, just to get the experience?
Well, a FEW Hall of Famers have done so (Ryne Sandberg comes to mind), but as a rule, stars are NOT going to stoop that low. Hence, most coaches and managers are guys who gave up all hope at playing sports themselves a LONG time ago.