I thought about that, but I don't think that "Test Utils" really fits under "best practices", and I think that "Testing Services" definitely does.  I left "Test Utils" above "Best Practices" because I refer to it in the "Testing Services" section.

I'm open to suggestions on this one, but atm I'm feeling like the goal of keeping "testing services" inside of "best practices" kind of trumps.  I could see the whole "best practices" section being moved out to a separate file at some point.