Who should I keep in my minor leagues?

[bxshock718]

I am in a 16 team dynasty league, where you keep all your players. However, I am currently rebuilding and preparing to trade two players for eight minor leaguers. Because I have twenty-eight players on my minor league roster out of the max thirty, I would have to drop six. I am planning to drop Ryan Strieby, Scott Elbert, Brandon Erbe, Danny Gutierrez, Robbie Grossman, and Matt Hobgood. Any objections or suggestions? I am really struggling over this.

Ryan Strieby (Det - 1B)
Anthony Rizzo (SD - 1B)
Brett Lawrie (Tor - 2B)
Mike Moustakas (KC - 3B)
Josh Vitters (ChC - 3B)
Edinson Rincon (SD - 3B)
Ryan Westmoreland (Bos - OF)
Ben Revere (Min - OF)
Yorman Rodriguez (Cin - OF)
Juan Duran (Cin - OF)
Guillermo Pimentel (Sea - OF)
Michael Choice (Oak - OF)
Trayvon Robinson (LAD - OF)
Robbie Grossman (Pit - OF)
Daniel Fields (Det - OF)
Angel Morales (Min - OF)
James Jones (Sea - OF)
Matt Hobgood (Bal - RHP)
Brandon Erbe (Bal - RHP)
Andy Oliver (Det - LHP)
Scott Elbert (LAD - LHP)
Danny Gutierrez (Tex - RHP)
Garrett Richards (LAA – RHP)
Jameson Taillon (Pit - RHP)
Andrew Brackman (NYY - RHP)
Robinson Lopez (ChC - RHP)
Trey McNutt (ChC - RHP)
Brody Colvin (Phi - RHP)

[bxshock718]

I really need help. If you have any time just help me. Does not have to be thoroughly thought out. Just state your reasons why you would drop each guy really breifly

[MaudDib]

I am pretty ok with who you have picked. Garrett Richards instead of Erbe but not real keen on either.

Have to ask what the trade is though.

[bxshock718]

I am trading away Mauer and Greinke and getting

Miguel Sano, Wilmer Flores, Stetson Allie, Devin Mesoraco, Max Kepler, Zach Lee, Taijuan Walker, Russel Martin, Brett Cecil, and a 2011 1st round draft pick