Nickelodeon is firing the wrong people and killing the wrong shows, by far. They refuse to give any of their new shows any kind of fair shot and are clearing the decks, for what? An iCarly spinoff starring the most obnoxious and hated character on the show and a Laverne & Shirley-like program with an "opposites attract" type thing going on, along with doubling down on Fred, a concept which was dead to everyone under the age of nine once the lead could cast a vote?
They botched the Nick Jr. launch by throwing commercials on the main Nick block. The "Nick Mom" block on Nick Jr. looks to be the place where humor goes to die and to mine jokes covered in moldy For Better or for Worse strips. Nicktoons is so far off-brand you should laugh when you hear the network's name, TeenNick refuses to have any kind of budget and will run One on One and What I Like About You until the master tapes disintegrate, and outside of Friends, Nick at Nite has terrible product. And the Power Rangers franchise seems much worse off stuck in the Nicktoons hinterlands than it ever did stuck to ABC and affiliation pre-emption whims; there's no buzz to the show at all, just a zombie show.
Finally, the Hollywood Heights debacle of reairing the pilot for a week and killing all the buzz around the show definitely falls to the scheduling morons for sure. Replacing it with George Lopez was the kiss of death.
They need to fire the scheduling staff who thinks messing with TiVo schedules and running SpongeBob and iCarly to death are great strategies, and reduce their commercial loads considerably. Also, they need to stop playing follow the leader with Disney. The people who are making the shows and encouraging are not the problem, but the terrible marketing and scheduling they're stuck with which has way too much of MTV's influence going on.