Coaches often need to make decisions about their game model and how to execute it. Playing by closed solutions or playing by principles is one of them. The first option, offers less choice to the players and it's easier to learn and execute while the second one allows the players to interpret which team principle they should ensure based on the game situation and teammates adapt to it. Nuri Sahin at Borussia Dortmund has set very clear offensive principles and the team has performed at the highest level. In this article, we will discover the team's principles and offensive tactics.