Thank you. That's much clearer.
Departments will come to us with their requirements. There are times when they will say, “We can't accept interoperability. We don't have the time to test anything.” They want like-for-like. They make the case that we have to get, not necessarily Cisco, but it could be any vendor's gear. We must replace it with exactly the same vendor. That's the instance where Gartner has said that, when we are doing that, we should review them to make sure they are what the departments claim.
We used to, not all the time but mostly, just accept those. We now review and challenge those requirements to make sure that there is an operational imperative, and that we cannot move to a more open and transparent process. They make the request, and they lay out the case and the reasoning why.