Fantasy baseball league...it's killin' me!

Okay, so after getting off to a horrendous start to the season with all five of my fantasy baseball teams (much like the Yankees' season so far), I finally figured out how to fiddle with my lineups, dropping players who weren't performing well (or at all), bolstering my bench based on how many points players had, and basically just padding my team with whatever Diamondbacks were available in my teams' leagues. Not an Arizona or even really a National League fan, but that team is off to a phenomenal start. So far it seems to be working, as most of my teams are racking up more points than their rivals since I made the changes (only this week). I don't think I have a prayer of winning this thing, but I'd like to avoid the humiliation of all five of my teams coming in last place in their leagues.