FredLeonard said:Cancelling Law & Order when basically they had nothing else to replace it.
NBC should also never have let Jesse L. Martin (Det. Ed Green, Lennie Briscoe's partner) leave Law & Order, and more importantly, they should never have allowed Anthony Anderson (Det. Kevin Bernard) to replace him. Anderson, in my opinion, is a terrible actor, and the plummet in ratings in the week after Anderson's debut tells me that a lot of viewers agree. I believe adding Anderson was the beginning of the end of the series.
Also keeping with the Law & Order topic, Christopher Meloni (Det. Elliot Stabler) should never have left SVU, and Richard Belzer (conspiracy theorist and Det. John Munch) should be getting the amount of airtime he got in the first few seasons, not the pathetic token airtime he now gets. The least they could do is bring Sam Waterston into the show in some capacity.