Q1. when working within change at my previous organization, I personally felt the best motivators for those impacted was the following,
Communication cascaded from the top (managers and stakeholders), utilizing change agents ,thus helping their co – workings and seeing the benefits of the change themselves not just from the (outsiders) implementing the change, thus involving those most impacted from the start so they could engage and help problem solve what they thought might be missing within the future business process.
Q2. To be honest I believe all motivators have an influence within change. It depends on the individuals going through the change and using each motivator in a way to best suit the needs of the individual going through that change. The best way to begin is to empathize then tailor your approach to best suit their circumstance and needs, try and understand more so by communication to their managers to see the best fit for implementing the change and gaining their trust thus causing less impact to business activities.