Discuss the following statements $($Brown$,2013,$ p$.13)$:

$1.$ OD uses change management principles to effect the changes required.

$2.$ The primary difference between OD and other behavioural science techniques is the emphasis upon viewing the

organisation as a total system of interacting and interrelated elements. OD is the application of an organisationwide approach to the functional, structural, technical, and personal relationships in organisations of which change

management is a part.