Britney Spears’ decision to join the panel on X Factor brought the talent competition into the zeitgeist. But now sources are saying that show creator Simon Cowell isn’t happy. Someone close to the notoriously unhappy judge say that Britney’s tepid performance wasn’t worth her $15 million contract. Says one source: ”He wanted crazy Britney, but he got boring Britney.” Past judges of the X Factor include Pussycat Doll Nicole Scherzinger, Cheryl Cole and Paula Abdul. This year’s edition also included Disney breakout Demi Lovato and with the news that judge L.A. Reid is also leaving, everything is up in the air for season two of the X Factor.