The Question and Answer section for Friday Night Lights is a great resource to ask questions, find answers, and discuss the novel.
The coach's purpose was to inspire his team.... not for himself, not for the benefit of the team, but rather for them to know that they gave their bast and can hold their head high. He wanted them to remember the days they played football with...
man vs self (physical challenge)
man vs society (Coach Gaine's conflict with the town)
Some of the various themes in Friday Night Lights are as follows; racism, football and the economy, education/sports, male/female stereotypes.
For a detailed look at the novel's themes, visit Gradesaver's theme page for the unit.