Without a managed server, you will be uniquely lost in our day. In your large company, one computer worker just has no chance to handle all the work that awaits him every day after arriving at work. It won't stop all day, but you're still solving some problems. You can't work well because your computers simply don't work in a good way. You won't be with us. Comfortable operation will be commonplace.
Without a managed server, you will need to continually address any specific issues that will bother you every day. If you entrust your computer base in the hands of professionals, you will have a guaranteed smooth running that was only a dream until that time. Change your dreams into reality and you'll see that you'll all be happy. The work will start to entertain you again.