What exactly is the role of a unit stills photographer?

Let’s be honest, a BTS photographer is pretty low on the call sheet. However, what I bring to the table is imperative to any successful production. Need unit stills imagery that showcase the day-to-day actions of your set? I’m your guy. How about promotional portraits of your cast? Or you may just be Looking for someone to watch over catering while the DP decides what lens to use? I can do that too! What I’m saying is, I can be an invaluable member of your team and look forward to speaking with you!