And there's some of the fine-print. Won't be ADDING 3,000 to the list.
I doubt JB keeps many, if any E90s for any extended period of time.
In addition to the deliveries, there is also to be some CBA staffing (maybe) and overstaffing for the inefficiencies of having a small base-within-a-base for LR/XLR in BOS/JFK, the associated 3 man flying for the LR/XLR, the inefficiencies of having 3 fleet types (plus one of those 3 fleet types being new to JB), the possibility of the A220 being a 24 hour airplane vs the E90 not working the night shift.
Well, and the pilot retirements, definitely the massive pilot retirements.