That's neat how different people see things from different perspectives because that statement is meaningless sophistry in my world.
He was fired from finance minister of Greece after only a few months on the job for the less-than-braggable achievement of completely sabotaging Greece's recovery and ensuring Greece was the only European country which failed to recover during their bailout process.
He resigned and for good reason and he proved to be correct in all his assessments. You clearly don't know what you're talking about, at least get your facts straight.
Who thinks this way? Credential-ism isn't a substitute for clearly stated arguments.
If he presents an argument reflecting his credentials that's great, but some useless platitude doesn't get a pass because he went to college or some nonsense
Also, credentialed doesn't just mean academic credentials.