As I mentioned in the original post, we wanted to hire Claire to run Know Your Company inside 37signals, but there was a fundamental conflict of interest: She had interviewed everyone at 37signals as part of a consulting project, and knew a lot of details about how everyone felt about the company. Everyone spoke to her in confidence as an outside consultant, not as a colleague. Bringing her into 37signals as an employee later would be a violation of that trust, so we weren't able to hire her.
You'd have to ask Claire how she plans on staffing the company, but initially it's just her with a little bit of our help during the transition. As far as I understand, soon she will be bringing someone on part time to help with product development until she's ready to make a full-time hire. Slow, steady, and prudent.
Hope that was helpful.