It is not possible for every company to employ all types of professionals. It is very expensive to employ professionals from IT sector. Almost every field nowadays needs support of IT services and so professionals from this field are in great demand. They command very high salaries in the job market.
Hiring an IT professional on permanent basis makes sense only if services of that professional will be used most of the time during working hours. Otherwise, employing a highly qualified IT professional can prove very expensive. It is mainly because of this reason that IT outsourcing is preferred by most companies. It helps save money and has many other advantages as well.
It is difficult to find qualified IT professionals. By outsourcing complex and high end IT works to an outside agency, a business can hire the best of IT personnel. Once a person is hired on permanent basis then the company is stuck with that person.
However, there is no such disadvantage with outsourcing where a company can hire the best talent available in the market. The professionals can be hired as and when needed. IT professionals working in the outsourcing industry bring superior technological capabilities.