The section on unit development looks at the formation of the players into an effective unit how the various combinations and subunits linked together and the options and reasons behind the suggested binding. There are many variations to binding units together and all have their benefit. It is important. However that the coach and the players understand why they use the techniques they do and these may very tactically technically or just be player preference. But this is a partnership between the coach and the players and a sound understanding of the role and requirements of each individual within the unit will encourage cooperation and avoid conflict due to technical aspects being imposed on the player.