so how do you negotiate SLAs? How do you know what level of security is required? How do you prioritise requests? How do you know which team to ask favours f

so how do you negotiate SLAs? How do you know what level of security is required? How do you prioritise requests? How do you know which team to ask favours from? How do you get more money for your department? How do you avoid the poop-gravity interaction cycle? All of this is intrinsically linked to the business logic/goals of the company. For example: Our team worked with $cashCow team to reduce time to live by x percent. We have saved the company y percent a year. Now give our team more cash we can do it for other teams. That requires a basic understanding of the business, and its priorities, so you can support the most important internal users and make them more efficient.