These weeks with two midweek games certainly test pitching depth. When they shift to one midweek game in a few weeks it should allow one of Gordon or Duplantier to shift back to the bullpen, which will be a welcome addition. Personally, I would keep Gordon as the midweek starter.
Harrison, Stehle and Nixon seem to be the preferred bullpen arms right now. Throw Duplantier in that mix and get 1-2 other arms to emerge and that should be good enough when combined with the starting rotation Texas is rolling out.
Interested to see how they bounce back this weekend against a South Carolina team who is struggling a bit.