Ah. Yeah, I can see where you got that. Those were all decisions made by CBS, the studio. Bernero, Mirren, and Messer--the creative minds behind CM, the actual "heads" of CM, so to speak--did not want to cut JJ, do not want to cut Prentiss, and did not want to replace JJ. Those were all decisions forced onto them by the network (if you watch "JJ" with that in mind, it's very clear that they let her go very, very unwillingly, and were pissed at the network) and not really things the show and the people behind it are at fault for.