English to Chinese Tech/Engineering Business/Commerce (general) outsource

Q Is outsourcing a real trend or a fad?
A CH: It definitely is a real trend. We’ve all seen the growth of outsourcing in the functional areas of a bank, for example, in human resources, IT, finance processing and so on. The growth going forward is in the area of operational outsourcing and more of the “core” activities of a financial institution as opposed to these traditional service or functional areas.
A CK: Supporting the fact that this is an integral part of the way banks do business is that some banks find themselves sub-scale in terms of processing volumes. To stay competitive they have to invest in infrastructure that does not support an economic business case.
最后一句合乎逻辑吗？