To me it's as simple as Gibbons doesn't really understand advanced statistics and that's enough to make a move for me. He certainly knows platoon splits and I assume we probably bunt fewer than most teams (despite people bitching about it). But his lineup construction is bad (in itself who really cares but it does show a lack of understanding on his part), he CLEARLY doesn't fully understand how poorly some pitchers can do when they face a batter for the 3rd or 4th time in a game, he uses his unrested closer with 4 run leads, etc.
Now that said we bring in a stat-savvy manager and we'd find stuff to bitch about but I think it'd be less often.