Many companies have a history of failed outsourcing efforts. Or ones that didn't fail, but which failed to realize any costs savings. And, of course, there are

Many companies have a history of failed outsourcing efforts. Or ones that didn't fail, but which failed to realize any costs savings. And, of course, there are often other similar failures, like failures related to contractors, or failed attempts to switch from internally built software tools to third party vendors. If a company has been around for 30 years and isn't using an option that seems much cheaper, there is going to be a history behind that.