Drop Aviles? Drop Fontenot? Drop Both? For who?

[WHYOS]

Mike Aviles and Mike Fontenot are frustrating me at my Middle Infield position.... any input as to which one is a better choice to drop, and for who. And second, if I drop both, which two do I pick up? I could use some BA points.

Marco Sutaro
Asdrubal Cabrera
Orlando Cabrera
Elvis Andrus
Ben Zobrist
Louis Castilla

12 team 5x5 Roto; Mixed, Non-Keeper League. 22 Positions. 3 FA pick-ups per month; limited trades.

C Martin, Russell C LA
C Navarro, Dioner C TB
1B Delgado, Carlos 1B NYM
2B Fontenot, Mike 2B CHC
3B Longoria, Evan 3B TB
SS Jeter, Derek SS NYY
OF Sizemore, Grady CF CLE
OF Hart, Corey C. RF MIL
OF Ibanez, Raul LF PHI
OF Span, Denard RF MIN
OF Gardner, Brett CF NYY
UT Giambi, Jason 1B OAK
CI Kouzmanoff, Kevin 3B SD
MI Aviles, Mike SS KC
SP Webb, Brandon SP ARI
SP Volquez, Edinson SP CIN
SP Myers, Brett SP PHI
SP Danks, John SP CHW
SP Perez, Oliver SP NYM
SP Saunders, Joe SP ANA
RP Rivera, Mariano RP NYY
RP Francisco, Frank RP TEX