In health care, the Hippocratic Oath — “first, do no harm” — can hold as much sway in the board room as it does in the exam room. Among health care leadership, it can have the unintended effect of promoting inaction over change and innovation. As a result, U.S. health care has become akin to a smothered child—stifled and arrested. If we actually gave it some room to breathe, if we metaphorically opened the doors to let it run around outside, take chances, and fall down occasionally, it could grow into something different, surprising and more satisfying than anything we could have imagined. It’s time, in my view, to let our little precious grow up.