If this is in reference to UCCE, then it certainly is possible.
You could have all your Supervisors in a Supervisor Team, and each could still be assigned to monitor the teams they are supposed to. This is not an uncommon setup. I did this once for a customer who was using off-net resources to do monitoring for quality. Each of these "agents" was a Supervisor, and they were all in a dedicated team. None had any skills. They could all see all Teams to monitor.