Comment by dagw

If you're hiring a PhD Mathematician and expecting them to be great developers, then you're quite frankly doing it wrong. Don't get me wrong there are great developers with a PhD in mathematics, but that's got nothing to with their PhD (in general). You hire a PhD mathematician because you have math problems relative to their expertise that you need solving, and if they're not great programmers you pair them with a great programmer to help implement their solutions.