Over the years, the mutual fund giant the Vanguard Group has had no peer among financial companies when it comes to goodwill from customers and the media. It regularly dominates various “best” mutual fund lists put together by financial publications. Founder John C. Bogle is so celebrated for his focus on low costs and doing the right thing for the small investor that he’s frequently referred to as “Saint Jack.”

So why is a vocal collection of current and former employees putting so much energy into blasting the heralded operation? I address that question in my latest column for TheStreet, which you can read here.