He could write another "burning platform" memo and run Microsoft into the ground too...
Only if you believe he left Microsoft and worked for Nokia. If you consider he has always been working for Microsoft all the time, he successfully completed the mission of running Nokia into the ground so Microsoft could buy the salvage.
Yeah, as an investor, that's the kind of guy I'd like to have managing my company (not).
Hatchet men are useful, well paid, but definitely not high-profile, except to knock down and make their successor look better by comparison (see HP: Apotheker and Whitman).
I'm not excited about the prospects of Elop as CEO either, but Nokia was already in trouble when he took the helm.