In one way, I do assume, Strategy Practice (SP) = Bringing Change (BC) + Sustaining Change (SC) + Preventing Change (PC). Stragety is an effort of 'planned change' that an organization keep practicing, but the 'real change' tis beyond the control of an organization's strategy practices. There are evidences that promising companies have been failed and very very small iniatives have been emerged as global giants. My understanding about it is that the real change has its own way of happening, and strategy practice is to some extent a guess work. In fact the real change is a big force for a company to its success or unsuccess.
Organizations are interacting units with such big forces, and considered as organisms, and do have immune response as of human. They do not want to permit unwanted elements into their organizations. We know, change is 'different' than usual. Now the 'difference' need not necessarily be accepted by all the stakeholders i.e. some are facilitating and some are blocking the change initiatives. Now, the interesting thing is how the organization is immuned to the forces that are blocking the change initiatives. The strategy practice is mostly the 'fighting' with the change blockers, and the fighting modalities varies from organizations to organizations.
The change seekers (may) win the battle, this does not mean that they are free from the enemies, than again, it has to fight for sustaining the change initiatives. In due course of time, again the real change forces are appealing/compelling for another change, and if the organization does not want to bring the change now, it has to fight in order to prevent by practicing the strategy ..............