We spend most of our time and energy in a kind of horizontal thinking. We move along the surface of things [but] there are times when we stop. We sit still. We lose ourselves in a pile of leaves or its memory. We listen and breezes from a whole other world begin to whisper.
~ James Carroll

Horizontal thinkers see and understand horizontal scenarios better than other people. What does this have to do with resiliency? A lot... Most businesses have intentionally set up vertical organizations. By that I mean they have separate siloed departments that deal with specific, specialized functions. As I have argued repeatedly, however, today's paradigm requires horizontal sharing of information across department boundaries...
~Stephen DeAngelis, Pattern Recognizers and Solution Simplifiers, Enterprise Resilience Management Blog