Solid plans do not presume to know the future, but incorporate ideas and pathways that align with where the world seems to be headed.
Solid plans are not final because they recognize a changing world and that sometimes shifts in the system and culture warrant overhauling the approach in order to flourish.
Rigid plans set a firm destination based on unshakeable convictions.
Rigid plans are final, they assume an unchanging world and believe that as long as the team is focused on getting to the destination, the world will welcome the work with open arms.
Thriving in a world that is in fact changing all the time depends on building a solid plan, not a rigid one.