When should you use a sub contractor?

[Btaliat]

It is not all the time that you will be making use of the sub contractor. In fact, only make use of it when there is no other option left. For instance, you make use of it when you want to relief yourself of the numerous tasks that you have ahead of you. Apart from that, make use of it when you don't really understand the tasks that you want to handle. When else can you make use of it?