The work of each man in playing his position is shown in the chapters on Offense and Defense. As the season progresses, each individual should be studied, not only to discover his capabilities in his own position but to teach where, on certain shifts of the play, he can be used to best benefit the team as a whole. Sometimes it is best for the team that an offensive half back should play a defensive end, while the offensive end plays defensive quarter, half back or perhaps defensive full back. This study of individuals will help make a team uniformly strong. Especially on defense will it strengthen the weak points, which, if not fortified, the opponents will be sure to discover.