no matter how good the company is ... when a rival comes in and starts offer your employees double their salary to do the same job, then defections en masse are inevitable.
especially when you throw in those shit ***** they call player managers into the mix; not to mention a salary cap.
Unless you're the Roosters, you'll always get one or two who ask to leave for better opportunities (it's actually a good sign if clubs want your fringe and bench players for starting positions, mean you're doing something right)