Visit a tropical location: as you suffer the stifling heat and suffocating humidity, the locals go about their work unfazed … because they are used to it.
Visit a frozen locale: as you endure the bitter cold and biting wind, the locals go about their work unfazed … because they are used to it.
What is the climate of your organization? Is it too hot with fear and self-preservation? Is it too cold with indifference and disengagement? Without a steady diet of outsider perspective (which requires continually thinking like an outsider, not necessarily a constant influx of outsiders themselves), chances are you are losing the ability of accurately answering that question.
Look outside and see the different ways things are done “out there.” Zealously recruit and cultivate people who think differently than the rest. It’s not enough to simply come to different conclusions – if everybody has the same frames of reference and the same ways of processing information, the “diversity of thought” is simply an illusion.