I doubt our guards get more tired than our opposition -- we split minutes among 3 veteran guys, each playing 20 to 30 minutes. With TV timeouts etc, the kids should be all right. Good opponents are going to make a few long threes no matter how fresh our guys are.
In those 6 or 8 minutes at the end of most games, Dion and Scoop are trying to work the clock. It is the JB plan. Naturally, there will be times when they use the time, but don't get the best shot (your "perfect example") when the defense converges. There will be lots of other times, when they run clock and get a finish and find a jump shooter. Gotta give someone credit -- we haven't lost a single one of these close games.