If you’re a service-academy football fan who doesn’t keep up with the pro game, or even if you just decided to spend your Labor Day doing something other than refreshing the NFL.com practice-squad page over and over, here’s a brief recap of where some academy standouts found themselves as NFL teams trimmed down to the 53-man roster limit: Ben Garland (Air Force): The former standout defensive lineman for the Falcons made the Denver Broncos roster, but not on defense. Garland, who was promoted to captain in the Colorado Air National Guard in May, switched to offensive guard last year. He first…