Put this in context...
Both Kiki Vandeweghe and Rod Thorn have criticized player development as a team problem. Assistant coaches are primarily responsible for player development.
Also, three coaches--Sullivan, Cartwright, and Thate--had expiring contracts. Cartwright is interviewing for the LEAD assistant's job in Phoenix. Sullivan has close ties with Rasheed Wallace, being his teammate and road roommate while at North Carolina. Thate was hired at Kidd's insistence...California connection, personal shooting coach. Lots of different reasons why people are leaving, but I dont see the Nets begging anyone to stay, which should tell you something.