Working on Preferred Supplier Strategy for HW purchase, focusing on Servers and Networking Equipment's. I would appreciate if you can help me with inputs from your implementation experience to address below concern areas.

#1. Persuading Internal Stakeholders to explore competitive products with constraints like a single OEM for servers/NW products, preferred VAR's, etc. #. Best Cost for a Server or NW Products from OEM/VAR. # Preferred strategy for VAR/OEM. # How to keep the suppliers honest and competitive ? # Recommendation on companies/Consultants to validate quotes. If you would like to have a personal discussion, kindly drop me a message and we could get onto a Quick call. Thanks for time and help in advance !!