We're hearing that following Tuesday's dismissal of Life & Style editor Debra Birnbaum – where she was replaced by L&S general manager Mark Pasetsky – creative director Tom Lowe also made an exit. Signaling what might be the beginnings of a staffer exodus, we're told Lowe left his gig voluntarily, without the fanfare of a formal firing. Which leaves Pasetsky without a No. 2 to handle .. what was it again? Ah, yes, editorial.