Will Lehman Brothers mid-year stock grant keep employees from jumping ship?

We spoke to several friends from Lehman Brothers -- all pretty highly placed at the firm -- at holiday parties over the long weekend.  How do they feel about the mid-year stock grants bestowed upon them on 7/1?  Sounds like the "down payment" of stock that they would have gotten anyhow at the end of the year isn't really impacting decisions on whether to stay or go; it just isn't really a factor.  People are still actively looking around, and if given the right opportunity (which these days, may admittedly be harder to come by), they'd be out the door in a flash.  It may not be the early stock that keeps people from jumping, but the lack of good jobs for other than super stars that keeps talent  from crowding the exit doors.