Go back in time and redo '23 and '24 with reasonable moves:
Sign Swanson SS 7/180, move Story to 2B (a move we discussed on here)
Sign Eflin or Eovaldi SP 3/60
Sign Wacha 1/12
Sign Kenly/Martin/Duvall/Turner/don't sign Masa/don't sign Kluber
Sign Wacha SP 2/36
Sign Teoscar LF 3/48
Sign Flaherty SP 1/15
Does this turn the Sox into the division leaders? No, but it keeps them closer to the playoffs IMO.