Other than the number of requirements and number not linked, are there any other metrics that management find useful?
Tracking requirement development for things such as how many requirements have their Verification Method assessed, how many have Safety Impact set, basically depending on what requirement characteristics you are keeping track of in DOORS you should be tracking your progress. As far as what management looks at, the total, new, changed and deleted all of which we keep track of in our monthly metrics which is a topic for another day. :)