Let's say (hypothetically) you're working as an HFE-specialist for a major corporation developing huge situational awareness/command and control systems for many countries. The process for HFE/ID/UX is substandard and the interfaces are often put together by the programmers.
Now what if you could decide how everything will work instead? What would you do, what standards would you have the company adhere to? What would the processes you design look like? What key documents would be produced?