Hi Dori -
In my last life I worked in banking. Each area is so different that our team members each had their area of expertise. We broke it into teams -Teller, Customer Service (Account representatives), compliance, lending, our service secret shopper program.. As the leader, I worked on sales along with working with each team lead. I thought we could've used more in lending, but staffing restraints negated that idea. So for a staff of 400, we had 5 of us. We did cross training within our team. We also had teammate trainers in each area to help new teammates once they finished training.