A PMO professional is supporting project managers who are implementing a new organization-wide user support...

A PMO professional is supporting project managers who are implementing a new organization-wide user support system. The PMO professional needs to help the project managers enable change management effectively within the organization. In recent years, similar initiatives have failed because employees were too focused on the negative effects of change. The changes were enforced by sending memos to employees who did not adopt the new processes. The instructions to adopt the new processes did not offer any flexibility.

Which approach should the PMO professional recommend to enable change this time?