Former WB network and Lifetime network programming chief Susanne Daniels is replacing David Janollari as programming chief at MTV, the network announced late Monday afternoon.

At WB, Daniels is best known as the suit who brought us “Gilmore Girls,” “Buffy the Vampire Slayer,” “Dawson’s Creek,” “Smallville,” “Felicity,” “7th Heaven,” and “Charmed.”

At Lifetime, she gets credit for “Army Wives,” and “Drop Dead Diva.”

Much earlier in her career, while director of comedy development at Fox network, she helped shepherd “Living Single’ and “Martin” to the lineup.

And, if that’s not enough, MTV reminded us Daniels started her career as an assistant to no less than Lorne Michales at “Saturday Night Live,” becoming manager of development at his company after just one year.

Still, feeling the hire warranted some explanation, MTV Music & Logo president Van Toffler said in Monday’s announcement, “Susanne’s delivered more breakthrough pop culture hits in one decade than most producers do in their entire lifetimes. Very few people have the talent and instincts to consistently develop shows that connect with young audiences, but Susanne has thankfully kept in perfect touch with her juvenile side and we’re extremely lucky she will now be joining our restless, creative family here at MTV.”

Janollari, MTV said, had “decided to not renew his contract” after under three years at MTV, in which, MTV noted, he developed “Teen Wolf,” “Awkward” and “I Just Want My Pants Back.”

Janollari’s out, as of now and Daniels starts “effectively immediately,” MTV said. Ouch.

“We will always be grateful for his contributions and wish him the best,” MTV president Stephen Friedman said in Monday’s announcement. Brrrr.