3. Tom LaRocca
After 12 years at Hewlett-Packard, LaRocca left to join Oracle last January as its vice president of worldwide product strategy and alliances. Before he left, LaRocca was the vice president of partner development and programs for the solutions partner organization and played an instrumental role in the formation of HP's PartnerONE program. HP and Oracle have been heated rivals for years, duking it out in the same database market -- including going to court last year over a contract Oracle had with HP to develop software for its servers. A year and a half later, LaRocca is now the senior vice president North American channels and alliances at Oracle.