In every school, there’s a truth we don’t talk about enough: sometimes the hardest part of collaboration isn’t the work — it’s a teammate. Teaching is human, and humans bring history, fear, pride, and resistance. I once worked with a colleague who pushed against every part of our learning community model. I couldn’t change him, but I learned how to change the conditions around him. This is a story about navigating resistance, protecting the team, and doing the hard things tha