Investing wisely is one part discipline, one part common sense — and one part knowledge. It doesn't require an advanced degree, but it takes time to master the basics of investing and to stay on top of your accounts over time. If you don't have the time or interest to invest on your own, there are professionals who can help. The challenge is to identify a financial professional who is a good match with your situation — someone with experience, integrity and a working style that makes you comfortable. Here are some things to keep in mind if you decide you need experienced guidance in managing your retirement assets.