Keeping up with Joe Vitalone isn’t easy. I met him as VP of NA sales at ShoreTel. He left that gig in 2009 and headed over to LifeSize. He realized how much he loved ShoreTel and returned as VP of Channel Management last April. An internal memo by David Petts, senior vice president of worldwide sales at ShoreTel, stated Joe Vitalone is leaving ShoreTel immediately to join one of the company’s competitors.