I just though tonight while i was watching, how much Peggy really ruins the show for me. She is annoying, and just plain stupid. A sickening perfectionist that can _never_ be wrong, she is the focus of too many episodes.
All of the other characters seem to have more to them. Peggy just seems like a litte insecure woman hiding behond two silly little substitute teacher of the year awards, and a REALLY bad handle of the Spanish tounge.