Editor's Note: This story by Shane Schick originally appeared on Yahoo Finance Canada. I noticed them as soon as I got on the plane to San Francisco this past September: About a dozen young men in their mid-20s and early 30s wearing stark black T-shirts that read “I’m a modern marketing expert” on the back. We were among the Canadians en route to the annual conference put on by Salesforce.com (NYSE:CRM) a large business software provider but I’ll bet few if any of them knew their career journey would eventually take them into the arms of Salesforce.com’s biggest competitor. Those men ...