Why do so many big companies get poor returns on all the money they invest in innovation? A large body of research suggests that it’s because their managers tend to think novel ideas are “deviant” and resist them. As a result such ideas get watered down to make them less threatening—or get squashed altogether.

The solution, the authors’ studies show, is to inspire, support, and protect innovation by tapping into your networks. Three practices are especially useful. First, find and mobilize external innovation catalysts who are adept at synthesizing diverse perspectives and identifying creative solutions. Second, engage with internal sparring partners who can highlight potential objections and help fuse ideas with your company’s mission and turn them into compelling business propositions. Third, selectively sequence the introduction of those ideas within your social circles in the company to stress-test and gradually gain buy-in for them.

While there’s nothing inherently magical about these practices, if you follow them, you’ll find that innovating in a large, mature company is not only viable but highly promising.