The article vastly underestimates the desire of large enterprises to deal with only a handful of IT vendors. Sure, no enterprise wants monopoly pricing, but they also don’t want dozens upon dozens of different IT vendors to deal with.
Dozens of IT vendors sounds like a security risk.
If you add these I'll have bingo:
* "We already have X for this" (X is only vaguely related and/or does it far, far inferior)
* "it's too expensive" (said by $200/hour consultant vetoing $50/month SaaS)
* "it doesn't conform to the architecture" (used for anything that isn't Java and Microsoft Office)