Ship Breaker theme and structure

My book is structured in a pretty standard layout. Like most books it is written in third person about the main character. However as he crawls through the ship his internal thoughts are italicized, like when he thinks, “Don’t panic. You took this wire down yourself. You just need to keep following it—” (Bacigalupi) One of the themes that is starting to develop is how valuable teamwork is. Each person has a vital role to help make sure the job gets done. Also, competition comes into play because among each team, members have to compete to make sure they keep their spot. So far there is one main goal Nailer has, which is shared by most of the characters. His goal is to survive. He has to work really hard to make sure he keeps his job so he can get food to live. I think another goal he has is to learn his family history, but he is unable to complete or work on that goal because of his quest to survive. I would like to know how he is going to try to balance both ambitions. I speculate that Pima who is really bossy, and has taken the leadership role plans to make sure she is in control of all of the people in the group. I have attached a video that support the idea of teamwork.