Former Pennsylvania Governor and Philadelphia Mayor Edward G. Rendell, now a Ballard Spahr partner, is juggling a half dozen part-time law, banking, business-board, and media jobs. "I may earn more this year than in the 16 years I was Governor of Pennsylvania and Mayor of Philadelphia," Mr. Rendell said.

The difference between his current situation and his public life, he said, is that "I used to have 78,000 people working for me. Now I have three. I was my own boss. Now I have a dozen bosses. And they expect me to show up when they want me."