Over the past decade, football has changed at a more foundational and defined level than in any period since. The tactics of the game have been overhauled, the various approaches of different teams have evolved drastically, and the roles and responsibilities of the players have altered as a result.
Without delving into too much detail, from a very broad spectrum, players must now be more well-rounded than ever before. Strikers must press high, defenders must be comfortable in possession, midfielders must be able to tackle and deal with the ball under pressure, full-backs are like wingers and winger are like centre-forwards, and even goalkeepers will be judged by how they can kick a ball.