My company is very project-oriented and siloed. Many business units don’t want to fight for the money thus they build their own shadow IT. I think it's because of Chargeback Accounting. It’s all about finding the money or gaining approval for the money.
Like my last company, the money was all shared in one centralized IT budget; we could have sustainable agile teams with all business units/applications represented (each with their own backlogs).
Of course, Big Room planning facilitated the most important things to be worked on for the organization, so the Product Owners sometimes had to concede what was worked on, but at least their concerns were on a backlog to be worked on at some point.
Is Chargeback Accounting going to kill any scaling of our Agile rollout?