Some of the most common stats to see in analytics for contact centers are AHT, ACW and hold stats for a group and at an individual level. You already have the programming of the ACW stats in the sales dialer, should be easy enough to reproduce the same thing for the general dashboard. I recommend adding AHT and hold as well, plus a report we could pull at an individual user level.
With remote work being more and more common, employers need to be able to monitor productivity from a distance, these stats are essential to do so efficiently