Morningstar Analysts Seem Confused

I’ll gladly send a complimentary Peridot Capital 2007 Select List to the first person who can explain how this graphic from the Wall Street Journal Online (“When Buying a Stock, Plan Your Goodbye” – 01/14/07) makes sense. Put another way, how can Morningstar analysts justify calculating the fair value of a stock and then recommend investors not sell the shares when they reach that level?