What would he _do_ there in that capacity? I think of him as a technically brilliant engineer -- a "Managing Director, Morgan Stanley" and Bjarne Stroustrup just don't sound compatible (to me) on the surface... at least he's getting paid, though.
Edit: I got MD/ED backwards. Ignore the above.
But of course an MD can decide to 'get his hands dirty'. It is a personal decision.
We had an ED who ran a few large projects and had 2 MD's under him(and above me).
Edit: Just did a bit of googling and it looks like I did have them backwards. Thanks for the correction.