QUOTE : Doudna deeply enjoyed being a bench scientist, a researcher who gets to the lab early, puts on latex gloves and a white coat, and begins working with pipettes and Petri dishes. For the first few years after setting up her lab at Berkeley, she was able to work at the bench half her time. “I didn’t want to give that up,” she says. “I think I was a pretty good experimenter. That’s how my mind works. I can see experiments in my mind, especially when I am working myself.” But by 2009, after her return from Genentech, Doudna realized that she had to spend more time cultivating her lab rather than her bacterial cultures. This transition from player to coach happens in many fields. Writers become editors, engineers become managers. When bench scientists become lab heads their new managerial duties include hiring the right young researchers, mentoring them, going over their results, suggesting new experiments, and offering up the insights that come from having been there.