Tony KotlerTony Kotler is a senior consultant with Kotler Marketing Group.From the AuthorSourcing & ProcurementMy Turn: Solid Numbers for a Solid ROIWhen it comes to ROI, there is no substitute for reliable, quantifiable data. Many SCMs use ROI calculators to back up product price tags, but is the information behind the calculations trustworthy enough to take to the boardroom?Page 1 of 1