>>The MBA was 1,000,000% to improve his skills in his current occupation.<<
I doubt Tax Court will be impressed by your math, especially since it's irrelevant anyway. Basically the IRS position is that an MBA automatically qualifies the taxpayer for a new profession. You will need to show, for example, that graduate study in THIS field don't usually lead to promotion into management, or that management is not a different profession. Or maybe your client was extra smart, already working at a level that typically does utilize an MBA. This is a well-litigated issue, so there ARE good arguments and precedents out there.
Knock off the hyperbole and the ad hominem attacks (not to mention the typos), and get real.