Longtime Erik Sten staffer Kathleen Gardipee is leaving Sten’s office on May 24 to spend the summer with her daughters and then start a one-person consulting firm in the fall.

Gardipee stepped in as Sten’s chief of staff when Bob Durston took a break from the office to help run Sten’s re-election campaign. This marks the third departure from Sten’s relatively small office in the last year—Durston left to play den mother for all the city hall chiefs of staff last fall (he’s since quit that job), and Jennifer Yocom left a few months ago to join the Office of Sustainable Development.

What’s next? Sten quitting to take a job as the head of PDC?