A few more:
11. Number of public appearances per week by each on air personality/estimated number of people who attended each appearance
12. Number of cold calls per week by salesperson
13. Number of spec spots presented to new prospects per week
14. Number of irritating commercials which harm listening levels per week
15. Number of advertisers per month (and names) on your competition, not you
Thanks to BCAB for inviting me to moderate their research panel which featured Chris Byrnes, Warren Kurtzman and Sean Ross, providing the idea for creating a list of key objective management data.