system
Given the following post, respond as if you're commenting on Reddit:
human
[40K]How would YOU fix the Imperium?

The High lords of Terra are abolished and you take ALL of their places. Every group in the Imperium will do what you say without question. Using your knowledge, how do you give the Imperium a fighting chance? No bringing the Emperor back, or tampering with the golden throne at all.

EDIT: This thread turned out better than I could have hoped for. Thanks for everyone who answered. Very creative!
gpt
Without the Emperor changing/waking up/doing something physical, the only way the Imperium survives is by continuing exactly as it has for the last several thousand years. It HAS to throw people into the endless meat grinder or it WILL be destroyed. Chaos and the xenos are too powerful and numerous for ANY sort of non-Emperor change to sweep across it. Yes, stagnant technology and tactics are just a holding pattern, but they work. And that's what's important. Humanity isn't extinct yet, and it won't be destroyed as long as it keeps fighting exactly as it has since the end of the crusade. 

It won't hold forever, and a lot of people know/fear it. It's said that some of the primarchs will return when the holding pattern fails. Maybe they can do something. Maybe the Emperor will actually do something when that day comes. But with the sheer size and power of the Imperium, that day is a **LONG** way away.