As a matter of fact I am. Currently I spend most of my time away from the purely 'intellectual' six-sigma pursuits (thankfully) and work as a simulation specialist. Using 6Sigma, Kaizen/Lean, and a host of other management science mumbo-jumbo I create computer simulation models of whatever anyone in my company (BNSF Railway) needs a model of. I can build a process on the computer as it's currently done and play with the variables to determine what kind of impacts we get.
Fun stuff. It's an intellectual excercise but there's a lot of field and hands-on work in designing efficient logisitics parks, deciding how best to rebuild a locomotive, or the most efficient way to dispatch trains, among other things.
