If we use the analogy of the sword and pistol to which we referred above, it is reasonable to describe the conventional internal secondary role as the department of swords, a role that has long existed and which is increasingly under pressure by those state that has become obsolete to confuse the importance of key processes. In addition, some older attempts by nejorar the results do not justify the collective effort.
Against this, the concept of outsourcing to a specialist provider relationship with the gun might, because it is a relatively new idea and is capable of continuous improvement. Why would I want to continue with the sword when they could own a gun next generation?
A very valid reason is that you could have outsourced version of a gun whose operation is difficult to understand, and lacked manual and system which helps the user to suffer ongoing problems of routing. Under such circumstances, undoubtedly will not be nice to see how your competitor comes up with a sword.
However, there is the gun now, so you should consider future options carefully.