After the last one quit Friday. It's Betsy Ames:

AMES: FROM THE OFFICE OF PLANNING AND SUSTAINABILITY

We've got a request in for comment from Ames and will update this post as soon as we hear back. Update, 3:30pm: "Nick contacted me," says Ames. "We had worked together previously and I've worked with him in both the community and since he's been city commissioner. This is a good opportunity for me to pull together my experience in a broader role."

Ames has no concerns about the frantic pace of working in Fish's office, despite three departures over recent weeks. "I think each of them had their own reasons for leaving and I don't think workload was necessarily a high factor," she says.

Original post, 3:05pm: In the mean time, here's the lengthy statement released by Fish's office:

On Monday Commissioner Nick Fish announced his appointment of Betsy Ames as his Chief of Staff, effective November 2, 2009. Ames comes to the Commissioner’s office from the Bureau of Planning and Sustainability where she has been the Assistant Director/Senior Planning Manager.

“I’m delighted that Betsy will be joining my office as Chief of Staff,” said Fish. “I first met Betsy eight years ago when we both participated in the Flight for Freedom trip to New York following 9/11. Since then, I have worked with her in my roles as a community volunteer, a candidate, and most recently as a City Commissioner.

“Betsy brings a unique combination of political smarts, operational know-how, policy and program knowledge, interpersonal skills, and passion for making both the city and city government the best they can be. I’m excited she’s agreed to lead my team.”

In January 1995, Ames was appointed as the Assistant Ombudsman for Mayor Katz. Over the next seven and a half years, she went on to serve as a senior policy manager, where she worked as a liaison to the Bureau of Planning, Bureau of Buildings/Office of Planning and Development Review, Parks, and Transportation and led a number of Mayoral initiatives.

In 2002, she was appointed as the Assistant Director for the Bureau of Planning (now the Bureau of Planning and Sustainability). Since that time she’s provided executive-level policy direction for the bureau, worked on housing and legislative issues, and managed several challenging operational matters.

“I’m thrilled to work with Nick, and I ‘m eager to take all I’ve learned over the past 15 years and apply that knowledge on a broader scale and to citywide issues,” said Ames. “I look forward to building on the collaborative relationships I’ve developed inside and outside the City as I take on this new role."

Ames is an active community volunteer as a Board Member and Board President for REACH Community Development, one of the premier developers of affordable housing in Oregon. She is an avid photographer, an international traveler, and a committed bicycle commuter.