Kneepad, I agree. We "should" know what to do with a 3 point lead and under 10 seconds, which is foul the guy as soon as he crosses the 3 point line. And by we, I mean every college team should know what they are supposed to do.
However, so much can happen so quickly in these end of game situations, that it is completely understandable why I coach would want to go over the options, positions, who is doing what, one last time. Guys are tired, guys have foul trouble, get caught up in the moment. These close game must shave days and weeks off a coach's life every time they come up.