In the end everything will be alright
The purpose was to show people that even though bad things happen, good things will happen in the end. Like when money hurt his foot and he was so sad that he wouldn't be able to play football. He just wanted to give up on everything he tried so hard to accomplish. In the end he got to play his last football game and someone is paying for his whole college so he can continue studying and playing football.
O.C. Brown was trying so hard to pass his SAT. He just couldn't make it, he had to pass with at least a 16 or better. At the end of all that hard work O.C. passed with a 16 and got accepted into a college.
Coach & Team
When the coach is talking to the team, the director makes a close up to show how serious the coach is. How he tries to turn the bad things the players have in them into something good.
Montrail 'Money' Brown
Money was at the doctors because he injured his leg during one of the football games. That's when he was waiting for the doctor so he can know if he can start to play football again. At the end he did play with his team.