A German PhD would have better English than 99% of native speakers. And his work history is conspicuously lacking anyone who would normally hire a Finance PhD, and his list of skills doesn't include any maths packages. Not that this proves anything but it does warrant closer examination.

I might not be completely justified, and I don't feel all that great about making such a claim. But at this point, I think that pretty much anything is fair game with this dude. He dug his own grave by accepting funding, and then doing everything possible to throw it down the drain.

Why, are you actually interested in defending him in this thread?