If you already have in-house IT services, you may not understand how useful an IT consulting service can be for you. You've already got your well-trained experts, so why would you need to spend the extra money to bring in outsiders? Well, there's a lot of reasons!
In the first place, your team is working on handling everything you've got going right now. They're handling a lot of minor stuff, like recovering passwords or repairing and replacing broken equipment.