Actually, yes! They're very helpful and make the next time around easier. I'm a volleyball coach for my former University and if we lose to a team that we will see again later on in the season or if I've scouted a team prior to playing them we always "hit the drawing board."

We figure out our strengths and find a way to use it against their weaknesses, find holes on a team's defense, etc. All with the use of a drawing board. I guess visual aids help atheltes...