You're still speaking in riddles Boy, but if by 'losses' you mean RESIGNATIONS then I can assure you most vehemently - your information is wrong if you've been told nobody is leaving.
Tell your source to go back and check the A321 F/O roster.
Enough of this tittle tattle then - the point remains - why join a company (with a formal seniority system) which others are walking out of? Can't you take a hint?