Quick and easy, very nice.
Something to consider though - scouting every match. In 2007 we had a selected a team that we worked very good with in Match #2 of the regional. Their first couple of matches afterward were also very good and we stopped watching them after their 3rd match because we knew enough about them. The problem was that after their 5th match they bent their arm every so slightly that it wouldn't grip the tube anymore. They were useless to us. We asked them if everything was functioning properly and if there was anything broken; they said they were good to go. We selected them and soon found out they weren't in working condition.
Point being, we now scout every match and inside of a database keep a progression chart based on their average alliance score and opposition average score. Just a word of caution.
A simple system. Be sure to check out ours:
http://www.chiefdelphi.com/media/papers/2334?