About five years ago, Jessica Koch decided to take a hiatus. She felt disillusioned about how she’d been treated by her last few employers, and she had a young daughter at home with whom she wanted to spend more time. Her husband had been the girl’s primary caregiver up until then, but Jessica came to him with a proposal for a new arrangement—she would market and expand his small business and take over childcare at home, while he worked on a more full-time schedule.