Many of those guys, especially non-nfl types, lose their singular focus on football and have new constraints on their time — can’t neglect the wife and babies.
Recall Zach and how he wanted to stay after practice for extra work and the married guys were like, “No, gotta go.”
Non-BYU coaches have rejected recruits that have plans for missions. Why would they do that if they would ultimately get such a mature product? Because the downsides absolutely engulf the benefits, obviously.
No one is talking about the “maturity” of BYU when they go 4-9. Talent is talent.