These days, some studies show that employees in their mid-20s work an average of 16 months before moving on. An employee age 18 to 34 may hold up to nine different jobs.That has to make a manager think long and hard about how to keep Mike, that talented young collection system technician, around long enough to become a supervisor.But there’s an inexpensive and relatively easy way to keep Mike happy and protect your investment in his training: Find him a compatible mentor and watch both parties — and your organization — benefit.“Arguably, the cost of training employees alone means you
