If we need to save a little money, we could trade Holt, assuming there's a taker. If not, I think we will just send him to AAA, in case someone gets hurt.
Yes, Nunez can play a lot of positions.
2B
3B
LF (If we sit JBJ or Betts, Nunez can play LF and others are shifted around)
SS
That's 6 positions.
If Cora really wants to sit players a lot, then I can see Nunez playing 4 or 5 games out of 6. He can easily get 500-600 PAs, even if nobody else gets hurt from here on out.