The revolving door of top management at AOL Time Warner(NYSE: AOL) has spun out yet another executive. This time, it's Turner Broadcasting head Jamie Kellner. He joins Chairman Steve Case, cable news guru Ted Turner, and CNN chief Walter Isaacson in the ranks of the recently departed.

Kellner says he's stepping down after two years on the job to "spend more time with family." Isn't that what they all say? Regardless of his reasons, he'll hang around as the head of the WB Network long enough to finish out his contract, which expires in the summer of 2004.

Coming in to shake things up at Turner is Philip Kent. Perhaps we should say, returning to shake things up, since Kent was the head of Turner's CNN News division until August 2001. He left that post so Isaacson could fill it. Now, Isaacson's gone, and Kent will have much more responsibility than before.

Turner Broadcasting has an array of television stations, including TNT, TBS Superstation, Turner Classic Movies, the Cartoon Network, and, of course, CNN. Kent will lead them all, and will also be in charge of Turner Sports, which owns the Atlanta Braves, Hawks, and Thrashers.

He'll immediately start working with Kellner to fashion a transition plan, and will officially take the reins on March 10.

Will this returning executive have the right mojo for CNN and the rest of Turner? Well, at least one shareholder is happy he's coming back -- Ted Turner. Others will just have to wait and see how it plays out.