Employees are transient. Look at your own life: Even if you’re in your 20s or early 30s, it’s possible you’ve already worked with several different employers. One report from the Bureau of Labor Statistics stated that the boomer group studied held an average of 11 jobs while they were between the ages of 18 and 44. In the process of all of these job changes, though, we’re leaving behind lots of 401(k) investments.