The 4 P's and Coaching

I'm currently taking the MIT Lifelong Kindergarten MOOC. I'm trying to keep up with it anyway.

The mantra of the MIT Media Lab is the 4 P's: projects, passion, peers, and play.

This is a great way to teach, but what if teacher PD was set up around these four words? What if we allowed teachers to take an hour a week to work on a passion project that they shared with their peers?

What if coaches encouraged teachers to choose one project for the year, a project that would impact their classroom and allowed them to learn a new teaching technique?