If conservatives could find anyone with this skill set, he’d switch parties. Conservatives just don’t think like that. They start with the ideology and work backwards.
A conservative economist simply lacks the intellectual flexibility to think out of lockstep. It’s a mindset. (Not to mention that the very first time he or she opposed an ideological point on intellectual grounds, they’d promptly lose all credibility with conservatives. See: “If it doesn’t fit on a bumper sticker, it can’t be true.”)
But then, the conservative who wrote this wouldn’t understand — for the same reasons.