I am in a 14 team Dynasty Sim League (using Diamond Mind Baseball).  We use 75 man rosters and have a waiver system in place to lock in on new players.  The owners are quite savvy and are usually all over the best minor leaguers and college players.

I'm working on rebuilding my team and currently have the following minor league and college players:

Xavier Avery, OF
Emilio Bonificio, 2B
Michael Brantley, OF
Corey Brown, OF
Allan Dykstra, 1B
Tyler Flowers, C
Todd Frazier, SS
Carlos Gonzalez, OF
Wes Hodges, 3B
Lucas May, C
Mike Moustakas, 3B/SS
Carlos Santana, C

Tim Alderson, SP
Jake Arrieta, SP
Trevor Cahill, SP
Brett DeVall, SP
Jaime Garcia, SP/RP
Carlos Gutierrez, RP
Derek Holland, SP
Joshua Outman, RP/SP
Jarrod Parker, SP
Max Scherzer, SP/RP
Daniel Schlereth, RP/SP
James Simmons, SP
Rick van den Hurk, SP
Jordan Walden, SP
Christopher Withrow, RP/SP

Ryan Jackson, SS (College)
Cody Adams, SP (College)
Michael Zunino, C (HS)
Junichi Tazawa, SP (Japan)

Basically my question is, who should I cut loose, and who should I target as sleepers?  If you suggest a player, I'll need to cut someone since I'm at the 75 man roster limit already.

I'm very interested in opinions on Xavier Avery, Carlos Gutierrez, Joshua Outman, Daniel Schlereth, James Simmons and Chris Withrow.  If you have info on my college/hs players, that'd be great too.

Any help on "under-the-rader" type guys would be great!

Thanks!