I wonder if it has anything to do with where the commissioner (or whoever started your league) is from...
I'm in 2 leagues - one created by a guy on the east coast, the other by a guy in the mid-west. Pence was on the available players list in the first league early this morning, while he wasn't there in the other league. I checked again a few hours later and there he was...
P-Baker, Gregerson, Meche
DL - Zimmerman, Volquez