Chairman and CEO, Salesforce.com
The charismatic executive's big bet on software-as-a-service has paid off in a big way: Saleforce's ( revenue for the last four quarters climbed 37% to $2.6 billion, and Benioff's technology dominates the customer relationship management (CRM) category. Now Benioff is looking to diversify: His latest craze? "Social" software for businesses. --MLR )
He's a pro-customer, tightfisted risk-taker who is conditioning Wall Street to embrace his erratic earnings. If you're running a business with high margins - watch out.