People haven't figured out that "SaaS will liberate you from worrying about IT" is bullshit. All it does is change the types of problems in IT that you have to worry about.
Problem is that most companies consider IT (and tooling) a cost , not an asset (that needs to be taken care of, tended and re-evaluated every once in a while), then suddenly you're stuck with a midsized frankenstein blob of services that takes half your budget but is so damn complicated to untangle that it's cheaper to eat the cost. Middle management hell in one paragraph.