I agree an RSS should help in the short term. I think a long term option would be an added ability to set a staff notification option on badge settings to be notified when attained. It would be off by default but would give flexibility to the staff.
Also would be good to allow for Dashboard improvements to understanding TL attainment and promotion inevitability. For example, when we look at TL 2 we could possibly see a mark next to users that are close to TL 3 (whatever that means) without having to dive into each user.
That is for future arguments when Badges and TL level enhancements get into the mix.