The project managers and others flip. Delivery is slipping. The amount of code being written has changed. Stuff is happening that wasn’t on the schedule. The implementation of DevOps is shut down quickly.
You have to get buy-in from management before you attempt to implement DevOps or it will fail. They have to understand what you’re doing, why you’re doing it, and the measurable benefits it will bring.
Click through for some good thoughts, none of which is “use this software.”