It's a hub, so I think the CO crew are in pretty good shape. The size of the CO operation is essentially irrelevant compared to the size of the UAL operation at SFO, so any "downsizing" of flights would be insignificant.

There won't be dedicated CO staff after systems and operaitons merge, but in a hub operation of that size, I'm sure the CO crew can be easily retained over in T3.

The main difference I can see is in club staff. The UA clubs are much higher volume, so the roles are divided up (e.g., checkin vs. ticketing), so some of the multi-taskers may not like that as much.