There are many responsibilities for the head coach of a professional soccer team. For example, you must develop your players’ skills, knowledge, and abilities over time so they become more effective. On the shorter end of the spectrum, you are responsible between games for staging your practices, video sessions, recovery times, and other off-day activities so your players can play their best during competitive matches. You have to work to build chemistry among the roster so your team can function well as a unit.
Perhaps most crucially, however, you must consider the roster of players your sporting director or GM has assembled for you, and, weighing their strengths and weaknesses holistically, fit them together in a coherent set of on-field roles and responsibilities that maximizes their shared potential.