The Daily Digit is 5, as in 5 years since Microsoft's last major reorganization back in July of 2008. It's been a brutal 5 years for Microsoft, with a number of high profile product flops. Remember the Zune? How about the Kin? And how are those Surface sales going? And PC sales keep falling, and that cuts into their key software revenue because consumers, and now businesses, are using more smartphones and tablets. So now they are at it again.