I disagree. If they were a startup looking to develop some new technology or website then maybe six sigma and ITIL wouldn't come into play. But in looking for ways to manage an IT help desk for a company in which they could see thousands of help desk tickets per day, six sigma is the best and most well understood tool available today to help them reduce expenses and greatly improve processes. Six sigma is much more than a comprehensive checklist in this regard.

Plus, I think you're perhaps misunderstanding where his company is coming from. They're not necessarily looking for computer scientists to write code or design new systems in most cases. Instead, they're looking for information systems specialists to be able to quickly and efficiently solve IT issues for their customer, and managers of those specialists to ensure they do it as efficiently as possible.