Claude is an arrogant, obnoxious, condescending, cold, callous, negative, pessimistic and unfriendly vulture who, being a vulture, has no charisma or charm. How the hell he made it to where he is I don't know... I can only imagine him being an accountant, a financial adviser, a guy who is just at the desk doing computer work all the time... or okay maybe he could design products but I certainly can't imagine him presenting them.
I would not buy something from Claude and Tkakuk would struggle to sell me something because he has an element of weirdness and I'd feel a bit uncomfortable around him. That Paul guy who doesn't even work for Alan could sell me something. Interestingly, many of the contestants of the first two seasons could sell me something easily (I have only watched the first two properly so far); much more so than Claude. As a customer, I feel quite sure that I would not be pleased with Claude's service.