who is on point for all of the various pull requests?

In looking through my own pull request, I noticed there are many many more pull requests awaiting approval - some dating back years.

Is there a policy in effect or anyone specifically on point to move these along? We have talked for years about how important it is to get the community submitting tests, but I imagine there is a sense of frustration felt for those who have submitted tests but have not had them approved or rejected.

Thanks!
-John