I work at a smallish start-up as part of the documentation department. I joined the department as a way to get into the organization because I was interested in it. I was able to move around and contribute to different aspects from development, communications, operations etc. However, lately as the teams have started to fill out in these other categories I've found myself becoming more a support role to the new hires as they're given the tasks and responsibilities that before I would handle as part of my catch-all capabilities.
One thing this allows me to do is focus more on the department I'm in specifically but I feel conflicted about this. Although creating great documentation is at the end of the day fulfilling to me, I would like to achieve more than just working on docs. I feel almost as I'm a support character in every one else's stories now (even though I do continue to do my own work as well). I'm relatively early in my career, so is this something common when you start on a team that is small but soon gets bigger? Should I be making a stronger effort for more responsibility?