is leaving BBDO Worldwide.
In his position as vice chairman and chief creative officer of BBDO North America, Sann was primarily responsibile for the creative work of the network's headquarters agency in New York. David Lubars
, president Fallon Worldwide and executive creative director of Fallon North America, is returning to BBDO where he was head of BBDO West before joining Fallon in 1998. Lubars will lead BBDO North America as chairman and chief creative officer.