While we've released some major features including the Slack integration and new Wall Summary, we've also created a couple of new widgets for time to fill and sources of candidates:
All Candidates per Source
In the past we provided only active candidates by source. However this new widget will now show the total number of candidates, segmented by source and the date filters apply to application time. You can find this widget here. 
Average Time to Fill Per Week
Time to Fill is the average number of days between the date a job was opened (or job opening was opened, if your account is configured to use job openings) and the date a candidate accepted an offer for it. Each week's average time to fill number is based on candidates whose offer acceptance date is within the preceding 6 weeks. You can find this widget in the Hires widget library.