Chris Johnson vs Danny Valencia

I'm thinking about dropping one of these guys to add a pitcher.

The waiver wire is looking pretty thin so the only decent pitchers left should be gone soon. And when I say decent I mean Jeremy Guthrie, Jason Vargas, and Jeff Francis...

But I'd rather have a pitcher than use 2 bench spots for backup 3b, since it's a daily league so I can start a ton of pitchers.

The only catch is that it's a keeper league and I drafted both 3b late, thinking that one will have a good year and be a good keeper.  So with 3b being so thin, I may be willing to use one of my 3 keeper picks on Johnson (23rd) or Valencia (25th).

That said, would you drop one of these 3b for one of the SP I mentioned above?

If so, would you rather hang onto Johnson or Valencia?

Im thinking of dropping Johnson for Guthrie.

c- suzuki
1-dunn
2-phillips
3-mcgahee
ss-castro
of-braun
of-c young
of-bj upton
ut-Tabata
ut-G sanchez
sp-halladay, weaver, marcum, buchholz, lilly
rp-k-rod, axford, nunez
bn-kennedy, zimmermann, mcdonald
dl-francisco

12 Teams
HR, RBI, R, SB, AVG, OPS    W, K, SV, QS, ERA, WHIP
3 keepers, round drafted +1 or ADP -1

Thanks.