Common Change Management Errors (82)

lxxxii) Not Realising That Change Affects Everyone Differently, ie some people will be excited by the opportunities generated while others will be afraid of what might happen:
"... It is not possible to satisfy every group, as programs which satisfy one group often reduce satisfaction of other groups......For successful change, everyone must share the same objectives..."
Z. Mohmood et al, 2013

Usually the earlier people are involved in the change process and understand the reasons for the change, the more readily they will accept it.