With Harper, the Sox could be competitive this season, if they added 2 starters and one dominant reliever. If they also added Donaldson, or Lowrie, they could very well give the Indians a run for their money. Then if and when Avi and, or Abreu are gone, they could consider another addition, or two, for 2020, depending upon how the prospects had progressed.
What significant holes do you see in this roster?:
2ND. Moncada
3RD Lowrie
RF Harper
1B Abreu
LF Eloy
DH Avi or Palka, depending upon who is healthy and producing
C. Narvaez/Castillo
SS Anderson
CF Engel (That glove & speed are needed in CF, if Eloy and Harper are at the corners)
Utility infielder Yolmer Sanchez
Starters: Corbin, Rodon, Lopez, Giolito, ???? (Cease later in the year)
Bullpen: Fry, Hamilton, Minaya, Bummer/Banuelos, Burdi, Jones, closer to be acquired