So you've been asked to provide a review or summary for the boss' boss or even higher up. Top, middle or bottom... your rank is moot! You have been chosen for a reason. That reason could be technical, social, or political. The most important thing for you to know is that -- IT IS A BRIEF.
Prime Directive: Simple, simple, simple.
"Today." Where are we now?
"Tomorrow." Where are we going?
"When in doubt - Leave it out."