Millennial workers—those born between 1980 and 2000—will soon be replacing the retiring baby boomers, and employers will have to learn to “understand their generational footprint in order to keep this tech-savvy, plugged-in group of employees engaged in their work,” writes Tom Gimbel, CEO of The LaSalle Network, in a recent article for Kennedy Information Recruiting Trends.

He says that to keep millennial staffers “passionate” about their work, employers have to provide challenges as well as guidance. “Give them a mentor — someone they can connect with on a personal and professional platform who will provide them one-on-one attention that will help them gain experience and knowledge,” Gimbel says. “The most important thing to remember about recruiting and managing millennials is that just like buying a new pair of jeans, the perfect fit is hard to find. But with a little time and wear and tear, they become comfortable, and eventually, irreplaceable. Always keep in mind that eventually, change leads to comfort.”