Dell also named a new channel chief. Cheryl Cook, formerly vice president of enterprise solutions, was named vice president of Dell's global channels and alliances. She replaces longtime channel chief Greg Davis, who moved to a new role at Dell. Cook is a relative newcomer to Dell, joining the company in 2011. She previously served as senior vice president of sales at Nuance Communications and spent more than 12 years at Sun Microsystems in channel and executive management roles.