On paper, the best line-up we can put on the filed is Beni in LF, Verdugo in CF, Renfroe in RF and EHern at 2B. Currently, we have no 4th OF'er projected for the 26 man roster, except players already in the line-up at other positions: EHern at 2B, JD at DH and maybe Chavis at 1B/2B can play LF.
Starting EHern in CF and Arroyo or Chavis at 2B allows for Renfroe or Beni to PH (for Arroyo or Chavis?) or come in the game after a pitcher change, as EHern could then be moved to 2B.
The biggest plus, IMO, is on defense. Already, our defense looks somewhere between pretty bad to horrific. We really have no plus defender anywhere, except for Verdugo, if EHern plays 2B.
By moving EHern to CF, we improve the defense at 4 positions with one move!
Arroyo> EHern at 2B (barely)
Renfroe/Beni> just Beni in LF
EHern > Verdugo in CF
Verdugo> Renfroe in RF
On offense, it comes down to this comp:
Beni (.691) vs LHP or Chavis (.740) or Arroyo (.597)
Renfroe (.717) vs RHPs vs Arroyo (.678) or Chavis (.699)
One could argue, the offense improves by platooning Beni-Renfore in LF and not playing them both FT. Chavis and Arroyo might be better on offense. (Note how Chavis hits RHPs better than LHPs.)
Signing Marisnick won't improve the offense vs any pitcher.
.638 vs RHP/ .711 vs LHP
but his defense would help, especially as a late inning defensive replacement and being okay vs LHPs.
Signing Pillar would likely keep EHern at 2B near FT, despite the bad splits vs RHPs.
.678 vs RHP
.784 vs LHP
In theory, we should be looking for a great glove in CF who hits RHPs well, or just go with EHern in CF and let Arroyo and Chavis fight over 2B (Munoz/Arauz?) If they suck, make an in season trade for a 2Bman of CF'er.