Please Rate this Full Keeper Team

[lucky43210]

Although I haven't got a starting SS or C yet, my team is hitting .306 for the season so far. The pitching is about a year behind, maybe two. What is the biggest weakness? Who is the least likely to succeed?

Roto,
30 teams - Full Keeper
19 Active, 6 Reserve, 3 DL, 12 minors
Cats - BA, Runs, RBIs, HRs, SBs, W, SV, ERA, WHIP, Ks
My Roster
C - George Kottaras, Miguel Montero, Jeff Clement
1B - Fielder, Huber
2B - Cano, Barfield
SS - Stephen Drew, BJ Upton, Jeff Bianchi
3B - David Wright, Alex Gordon
OF - Alex Rios, Jermaine Dye, Hermida, Justin Upton, Elijah Dukes, Matt Kemp, Jose Tabata
SP - Felix Hernandez, Ian Snell, Zach Duke, John Patterson, Denny Bautista, Gavin Floyd, Anthony Reyes, Jason Vargas, Ezekiel Astacio, Edinson Volquez, Adam Miller, Nick Adenhart, Donald Veal, Kevin Slowey, Ubaldo Jimenez
RP - Fernando Rodney, Jonathan Broxton, Emiliano Fruto, Bryan Miller, Andrew Brown