Re: If you dislike change, you're going to dislike irrelevance even more @AC
That's all well and good until one of the "poor choices" land the company with some regulatory failure, loss of data, successful hacking event or in extreme cases, inability to function after an unforeseen event (like a disaster).
Even if a company goes down the route of alternative service provider, it is essential that they keep some IT expertise, even if it is only at an architectural level, otherwise the remaining managers who get to chose whether to switch to another alternative supplier (in the case of dissatisfaction with the first one they choose) either run the risk of being bamboozled by whatever marketeers they speak with, or end up having to pay for external consultants, who may (because of self interest) not recommend what the company actually needs!
I agree that IT departments are an endangered species, and not because they do anything wrong, but because they're not saying what the non-technical managers think they should be hearing. Too often, influential managers in companies are more prepared to listen to the salespeople trying to sell snake-oil rather than their own IT people.