If Bloom actually pulls off some kind of roster heist it will have to primarily be via the trade market. This team still really needs SS/SP and a bench bat that can cover Cf. If the shortstop (who doesn't even exist yet) or Story goes down and you move Kike in to play SS/2ND you have no Cfer, unless Duran is your guy. I suppose Arroyo can be that guy now, but I'm not sure if I"m comfortable with him during a potentially long stint and that still leaves Duran or in CF or if Kike goes down, or Verdugo.
The pitching is more tricky because if healthy we technically have 6 starters going into camp (Sale, Paxton, Pivetta, Whitlock, Bello, Houck) but you still like to see another name on that list because you know what they say about pitching. Adding a name to that list with a relatively good bill of health should actually make for a decent rotation. Perhaps it's a little bit easier to take an optimistic outlook on the starting pitching with some young arms in there and a better bullpen to help them along the way. But the position side of the ball is clearly not set.
The odd thing is the Sox traded away from the DEPTH of the very thing they need. A shortstop. Now I don't think anyone here seriously expected Hoy or Downs to be the starting shortstop on this team, but I'd figure those are the guys you call up who can field the position for a week or two. Depth like that matters and right now they don't even have that up the middle. Unless of course, the Sox are fine with Arroyo there periodically and figure both Kike/Story can back up as an emergency. That still leaves them short a Centerfielder. Ironically I think the Sox have a prospect in their system who even if he performs closer to his floor would be the perfect elite defense plus speed Cfer/SS type, but if giving Rafaella another year in the minors helps his bat develop then I say you forget about the kid until 2024, if he plays his way up this summer then great.