Janel Wittmayer, 50, still recalls the advice she got about blending work and family while she was an MBA student at the University of Minnesota. She had joined fellow Carlson School of Management students at an annual conference targeted to graduate women business students. “I distinctly remember one of these women who was speaking,” Wittmayer says. “She was telling us that as you start to accelerate your career, and as you have kids, you have to constantly be thinking about what value your time has.” The speaker’s advice: Seek help and outsource whatever you can. Today, Wittmayer ...