I have doubts the Devils would be open to this but Mercer would be my target in a Fiala trade if I were Guerin. The Devils would have Bratt, Fiala, Holtz, and Sharangovich to ice in their future top 6 winger slots. You could argue Mercer should be slotted over Sharangovich, but either way one of them would be relegated to the 3rd line when they belong in the top 6. If they take Salfkovsky or Cooley 2nd overall, that would further complicate their situation. Might need additional pieces involved, but Fiala for Mercer as a base would be really interesting.