Trade Holliday to upgrade 3B? WHIR

[footballisbetter.com]

I have been shopping some OF's in order to upgrade my 3B position. I was offered N Walker and Ethier for my Holliday. Should I even be considering this? 10 team h2h daily lineup league. I would drop P Alvarez. I probably should have dumped him already since it is a 10 team league but I don't see better options on the WW.

My lineup
C- R Martin
1B- Morneu
2B- B Roberts
3B- J Lowrie (2B, SS, 3B)
SS- Tulo
OF- Braun
OF- Holliday
OF- Ellsbury
U- J Upton
Bench- D Ortiz, Cuddyer (1B,2B,3B,OF), P Alvarez
Pitchers- C Lee, Gallardo, Pineda, Kuroda, Lilly, D Hudson, Feliiz, Hanrahan, Walden