Five miles apart in geography but worlds apart in philosophy, Manchester City and United prepare for Sunday's derby as living experiments in how football can be organized — one side trusting the map, the other trusting the mapmakers. Enzo Maresca has inherited Guardiola's conviction that certainty of movement creates certainty of outcome, while Michael Carrick has placed his faith in the intelligence of his players to read the game as it unfolds. The match asks a question that football has always asked: does freedom flourish best when it is given, or when it is earned within structure?