We have no need for Brentz.
JD can play LF whenever an OF'er gets hurt or needs a rest. That frees up a few PAs at DH for HRam.
Playing JD in LF also squeezes some PAs from Nunez.
If we really want Nunez to get 450-550 PAs, there's just no room for everybody.
I can understand wanting to keep the depth, but I would not be surprised to see HRam dumped (maybe save $4-7M) or JBJ traded. We could trade Holt and save $2M.
Adding Nunez and JD really puts a squeeze on several players, but it's not like the world ends, if we have to DFA or trade Brentz, Marrero, Swihart, Holt or Hernandez.