According to this interesting article,an MBA isn’t all its cut out to be.

While having that M.B.A. might give you a boost, the reality is that the degree generally isn’t a guarantee or indicator of your future success. Business success has more to do with leadership, talent and a drive for excellence than it does with having a degree from a prestigious university. An M.B.A. can help you get your foot in the door, but according to Peter D. Crist, chairman of Crist Associates executive search firm, “it’s instinct, it’s hard work, and it’s raw intelligence” that will really help you get ahead.

It references this article in Businessweek, which is also worth checking out.