If you own a business, you no doubt have a lot of different issues constantly riding around on your plate. While the obvious ones are cash flow issues, personnel issues and the culmination of good sales practices and solid accounting practices are going to be very dominant most days, you also need to take the requisite amount of time and devote it to making sure that your website is up to snuff. Not just the website that your customers see as a brochure, either. Your internal, employee based website also has to be in tip top shape, if you are going to make sure your employees keep everything together.
Keeping your employee website up to snuff is not so much about aesthetics, the way the public facing websites usually are. For your employees, the most basic stuff is just fine. They probably do not even care about the looks, as long as things are easy and efficient. One way that you can help it to be this way is to make sure that there are as few distractions as is humanly possible. The more clearly laid out your employee facing website is, the more quickly and easily your employees can accomplish what they need to do, according to their job descriptions and the different laws under which they have to work.
Finally, keeping your employees being constructive on your website means that they need to be able to access it all of the time. This means that your up times need to be very solid, and your hosting has to have as few issues as humanly possible. Whether you choose to outsource your hosting or not is a decision which no one can make for you. If your IT folks can handle it and you have the initial cash to invest, you can go ahead. Just do not be surprised if a general internal issue ends up impacting all of the servers on the premises.