What’s up with Whole Foods?

My source of information on all things related to supermarket produce, Perishable Pundit, has an interesting analysis of what’s going on at Whole Foods.   The chain has just sold 17% of its stock to a private equity firm for $425 million.  What’s this about?  As the Pundit explains it, these are hard times for Whole Foods and this was the best of a bunch of unappealing options.