Newswatcher
There's no way it makes sense to keep the 146s.
Secondary systems for Parts and engineer/pilot training alone suggest this - then take into account the huge commitment of 100 ordered 73s with options on a further 50 a/c.
No, the 146s won't be around for long.
Hope the corresponding pilots come through this acquisition relatively unscathed - good luck to all involved.
Cello