We didn't get a left winger in the summer and we still desperately need some balance. If Grealish and/or Green aren't up to it in Bruce's eyes then I'd love to see something done about that. Hutton, Westwood, Gardner may be shit but Grealish, Amavi, Ayew, McCormack, Kodjia and now Bacuna have all basically been filling in out of position at some point this season and Bruce is likely to want to play a 442 at times (which is no bad thing imo).
Having mentioned Gardner and Westwood - If we got 2 central midfielders in I'd be delighted. If we don't get 1 central midfielder in this window I'll be disappointed.
Can Bruce find us better options at RB and GK? lets see. No-one's going to complain if we dont see Hutton again or if Gollini/Bunn are battling out for a place on the bench because we have found some keeper we all can agree on being an upgrade. I just think a Left winger and a central midfielder coming in would do us more good than say a RB and a CM. And after the last few years I dont really want to get my hopes up on more than 1 or maybe 2 signings in January.