Final answer:
The excerpt focuses on the organizational structure of teamwork and time management in organized team sports, highlighting the benefits of participation.
Step-by-step explanation:
The organizational structure of this excerpt is centered around two main ideas: teamwork and time management. The first paragraph introduces the concept of teamwork in organized team sports, highlighting how multiple students work together towards a common goal. The second paragraph shifts the focus to time management, explaining how student-athletes must balance academics and athletics. It mentions that participating in organized team sports can lead to a healthier lifestyle. Based on this, a suggested heading for the last section could be 'Benefits of Organized Team Sports'.