My impression is that generally speaking the returned missionaries need a full year of conditioning to return to pre-mission form (if they ever recover). It is the rare exception (although there certainly have been some) where a returned missionary was able to immediately step back into the team without missing a beat. However, I would not be suprised if Covey is that exception. Primarily because his talent is speed/shiftiness – things that can be somewhat preserved on a mission. Players that require intense lifting routines and loads of strength suffer most on a mission because there is little to no access to good weight training; whereas there is typically an opportunity to go run, jump rope, etc. Covey also strikes me as the type of guy that is really driven to stay fit, so I don’t imagine he will let himself get too soft phyiscally on his mission.
I think he will do great in the Coach Taylor offense, so here’s to hoping that Covey is the exception to the rule.