If your concern about the amount of work your IT manager is doing, and are afraid he is not protecting your network, you should get an IT audit. Many computer repair firms will offer a free IT audit to small businesses, in hopes of getting their business. Other companies only do audits and you cannot hire them professionally to repair your network.
Either one of these options should give you the reason needed to fire your IT support.
So fly networking offers a free IT audit to any business who is interested. We will give you the rundown on what is going on with your network as well as a inventory of all your equipment.
It is our passion to see you succeed. We help small businesses with their computer repair, technology questions, website development and internet marketing.