Oh, those pesky Millennials, thinking they can set their own work schedules and demanding meaning in even the most mundane office tasks. Then there are the Baby Boomers, just biding their time until retirement, phoning it in, all the while complaining about how younger employees aren’t paying their dues. And what’s up with those folks from Generation X? Don’t they know how to work collaboratively?\r\n\r\nThese are stereotypes, of course, but they are based on many people’s perceptions as well as real inclinations that researchers have associated with the broad generational groups. And while employers have always had to deal with tension among different age groups (experienced old-timers grousing about cocky young upstarts, and vice versa), this marks the first time in history that four distinct generations are coexisting in the labor force. They are the Traditionalists (born 1922-45), Baby Boomers (born 1946-64), Generation X (born 1965-80) and Millennials (born 1981-2000), according to Jay Meschke, president of the Cleveland-based business consulting firm CBIZ Human Capital Services.