In general that's true, but perhaps not when it comes to construction, especially for large public projects. In Europe, the goal of such projects appears to be to complete the project and have the thing that they're building. In the US, at least as of late, it seems like the goal is to pay various interest groups in money or patronage, and whether the thing gets built or not is only of a secondary significance.
My university has an auto shop for this very reason - at a certain size, it makes more sense to care for your own fleet than it does to contract it out, even though the auto fleet peeps have approximately zero overlap with educational goals.
In general that's true, but perhaps not when it comes to construction, especially for large public projects. In Europe, the goal of such projects appears to be to complete the project and have the thing that they're building. In the US, at least as of late, it seems like the goal is to pay various interest groups in money or patronage, and whether the thing gets built or not is only of a secondary significance.