I wouldn't read too much into these people leaving.
They have all done well over the last few years.
They have brought united and Ryanair to Ncl.
Fair enough we have lost united.
Maybe it is the right time for these jobs to be covered by someone new with a few fresh ideas on how to move things forward.
Maybe a look at how long haul can be delivered from NCL.
Sounds like they hoping to have links again so maybe a look at a LCC going forward?
Maybe get the tour operators together to share flights to ncl places so not the risk of a single operator.
Weekly flights or twice weekly to new Caribbean routes etc.
Could be an interesting couple of years and maybe a new focus on city breaks with Ryanair and jet2