CRM Change Management – How Change Really Happens in a CRM Implementation - CRM Search | Business Improvement and Social media | Scoop.it
The most visible difference between managed and unmanaged change is the pace in which resistance to change obstacles are resolved. Proactively managing resistance to change will raise the productivity slope trajectory and accelerate both time to value and payback.Other differences between managed and unmanaged change include the following:

Impact to culture. 

Project budget variations. 

Project success or failure. 

Achievement of business outcomes. 

Via Marteq