This paper examine the role of “internal consultant,” related to the implementation of an Enterprise Resources Planning in public service organizations a large university in Saudi. To study a role or how consultants work the researcher integrate two theoretical works one from Cleggs Circuits of power and the second Absorptive Capacity. The researcher applied these theoretical positions on single case study of a university in Saudi Arabia. It conclude of a framework explains the work of such internal consultants to help understand the role of such internal expertise which the literature lack examining.