Today's workforce consists of Baby Boomers hanging on to their jobs, Gen Xers growing impatient to move up, and Millennials expecting to leapfrog their way to the top. Generations expert Hannah Ubl of BridgeWorks offers tips for leaders who must manage this potentially combustible mix.

Hanna Ubl is a generational expert at BridgeWorks, a company that studies and consults on generational differences and the way those differences play out in the workplace. Ubl discusses Boomers, Xers and Millennials and says the Edge Generation, still in high school, will bring even more changes.