I'll vote Barmes as well. He has been horrible at the plate and just as bad in the field, which was supposed to be the guy's strong suit. Like I said in a previous thread, Clint is this year's Aki.
I could go with a lot of people for honorable mention, but I'll go with Hurdle for continuing to run the double .067 wrecking crew out there. Barajas and Alvarez are terrible players right now, and their presence in the lineup, along with Barmes, is like having half your lineup stocked with pitchers. In fact, I shouldn't insult pitchers like that because most of them can carry higher averages than these three currently have. Hurdle, bench Alvarez and play McGehee until Neal is either forced to ship Ped-2-blo back to the minors (where he belongs) to get consistent at-bats or until he unjustly fires you (offering you sweet release from watching these guys every night) and you become a folk hero/martyr for all those who know Huntington is the one who should be fired. You should start playing McKenry over Barajas for the same reason. We all know who is making the money, but we all also know who should be playing.
And for Pete's sake, get Walker out of the four hole. Run Jones, McGehee, Walker, McKenry and some shortstop 4-8 every night and let's see how it goes. It can't be any worse than what we have now. Just my two cents.