Change is not a process, it is the destination.  If we look at change as a process in a systems view, it doesn't work! Complex Adaptive Systems aren't linear, so applying linear process to a system often ends in failure.  When we add a layer, thinking about systems in homeostasis, we start to see why incremental change, tweaks and nudges work.  Systems seek steady state, and small adaptations are easily absorbed.  When we want to make big change, we need to change the system itself and seek a new and redefined homeostasis in order to make things stick.