I've seen it too - not uncommon. A frustrating angle is vendor lockin. You are required to only use the internal IT team for everything, even if they're far m

I've seen it too - not uncommon. A frustrating angle is vendor lockin. You are required to only use the internal IT team for everything, even if they're far more expensive and less skilled. They can 'charge' whatever they want, and you're stuck with their skills, prices and timeline. Going outside of that requires many levels of signoffs/approvals, and untold amounts of time making your case. There's value in having some central purchasing process, but when you limit your vendors to one (internal or external) you'll creating a lot more problems that you don't need to have.