But we already have a guy…
There are many individuals who can provide a bit of tech support. They may seem to do an okay job. They might even do a fantastic job, but there are still inevitable shortcomings when just going with the person you know who does some IT work.
This person may be good at some things, but do they have the experience managing an organization’s entire network infrastructure, including proper planning and budgeting for the future? Do they seem to not have a replacement plan, and are only upgrading as things slow down or break? How do service requests occur? Are you left just calling or emailing them hoping they happen to be available? What if they’re on vacation, sick, or otherwise unavailable?
By going with an IT Firm who specializes in working with businesses you know there is a team of professionals backing your organization.