How to implement ITAM without centralized purchasing
I am an ITAM professional with a decades worth of experience implementing and managing ITAM programs for startups, fortune 100's, and the US Government. I've been lucky enough to have a wide range of experiences to draw upon but one area I am strugglig with now is how to best implement an ITAM program where one has never existed, without the assitance of centralized purchasing. If $40 million plus of annual IT spend is happening from every angle of the business how do I position the ITAM program to be able to provide value? It's like trying to catch the rain.
Centralized procurement allows for a primary source of data with regard to the ingress of technology into the business. Allowing ITAM to get in front of new spend to do what we do. With the decentralized purchasing in place today purchases are made hap-hazardly based on a divisions particular need, budget, policies, negotiations, approval structure etc. Of the $40+ million spent in the last fiscal year on IT only about 23% of that came from CIO's budget and purchasing structure. These purchases run the gammit to include Oracle, IBM, Microsoft, Adobe and more each with seperate agreements, terms, cost centers, etc.
Options I have considered are below.
1. Focus on only specific suppliers/manufacturers/ vendors? Providing some value but leaving millions in waste behind.
2. Add considerable headcount to wade through an antiquated Accounts Payable system to collect the required data?
3. Somehow convince executive leadership to prioritize a centralized procurement strategy to maximize value.
#1 I believe is my best bet as again this a comletely new program, this business has never had ITAM, let alone an Asset Manager.
Any ideas, suggestions, or resources would be fantastic!