First off, 21 man rosters are too small for much of a bench. I have 1 guy I won't drop (Huff) and two spots I pick guys up to play on off days (for Monday it is Geoff Jenkins and Frank Thomas.
I'll likely waive at least one immediately after rosters for monday are final for somebody else.
I like to hit the max games played for positions, and it's tough to make up all at once. The 2-3 bench pitchers I keep I usually keep longer than the position players.
For Sunday, since Raffy and Everett face Mussina, I'm benching Raffy, and possibly Everett as well. I haven't benched Everett since putting him in my line-up, but Jenkins faces a rookie in MIL so I figure it's worth a shot.
* Steroid induced record