Anyone have advice on whether or not to set up Zoho Desk using Departments or Teams or both?

We are currently using Help Scout and are migrating to Zoho Desk. We are a small organization with two Customer Service agents(main email address info@...), a Marketing Director (has a separate email address), a Process Manager (uses info@... and a CS agent assigns) in addition to the two owners (have separate email addresses).

Currently, we have Help Scout set up where everyone has access to all tickets except for owner specific emails/tickets. I know I can mark them private. Our current challenge with Help Scout is that we have to switch mailboxes to view the Customer Service mailbox, Marketing mailbox and the Sourcing & Logistics mailbox. We would like to avoid having to switch mailboxes and be able to access all areas/teams/departments in the Dashboard.

Can anyone suggest whether we should set up Desk using Teams or Departments?