Actually one of the most interesting parts of this is how much Palka's defense has rebounded since he got up here. The first time I looked at his defensive number, he had something like a -55 UZR. He has cut his RF UZR to -25.6 in RF over 240 innings of work. In LF he has played almost nuetral in the 101 innings he has been out there at -2. His full season work is actually only -18.4, which means he is learning on the job. He's still bad out there, but not historically bad anymore. On the season, Palka is actually a + player at 0.2 fWAR, which honestly surprised me.
This year in terms of fWAR, Delmonico and Palka have been pretty identical players, with Palka taking a lead if his LF defensive numbers are accurate.