Price-testing relied on spreadsheets not vetted
...the price-testing process relied on the use of spreadsheets that were not vetted by CIO VCG (or Finance) management, and required time-consuming manual inputs to entries and formulas, which increased the potential for errors.
Flimsy rival spreadsheets, from the likes of Google or Apple, cannot compete - too much is missing from them. Discovering that baseline Excel functionality is not there or that favourite keyboard shortcuts do not work, is - to borrow a lyric from Alanis Morissette - like 10,000 spoons when all you need is a knife.