While in the modern management of football clubs former ‘managers’ are increasingly introduced as ‘head coaches’, meaning they are appointed because of their coaching acumen and have less influence on the general management of the club, that does not mean that the management side of the job dissipates completely.
They have may less decision-making power regarding the general management of the club, especially in regards to the transfer market, and the all-encompassing figureheads like Sir Alex Ferguson and Arsene Wenger might be few and far between. But knowing how to manage players, motivate people, conduct press conferences, interact with the fans, communicate clearly and with a positive impact is vital to the role, and yet they have nothing to do with coaching.