A love/hate relationship sums up what’s happening across the country when it comes to district-charter collaboration. The Bill and Melinda Gates Foundation is trying to spread the love by providing support and encouraging cooperation among district and charter leaders in places like New York City, New Orleans, Denver, Minneapolis, and Los Angeles. Specifically, Gates is pushing the development of district-charter “collaboration compacts” in various cities, which would theoretically lead to real commitments to work together….