German business software giant SAP just announced a fairly significant change-up in its senior ranks. The big news is that Rob Enslin and Bernd Leukert have been appointed to the company's Executive Board, and that Vishal Sikka, the executive responsible for the launch of HANA, SAP's cloud software platform, has resigned. The shuffle is seen as Bill McDermott's move to put his executive team in place. McDermott will be SAP's sole CEO at the next annual shareholders meeting on May 21. He has shared the position as co-CEO with Jim Hagemann Snabe since 2010.