The rationale for this decision makes no sense. Judson Althoff, global head of sales, said that they are making these changes to focus on a "$4.5 trillion opportunity" (i.e. cloud). Apart from the $4.5 trillion being over done, if a company thinks they are going to have a tremendous new market opportunity, wouldn't you hire more sales people... not cut sales people? Especially as it is by no means clear that people will use Azure... without MSFT wrapping Azure into EAs, it would probably be a small business.
I wonder if by "sales" they mean sales operations and roles in the sales org which were not specifically selling to customers... more sales support type roles.