One of the selling points for moving software into the cloud is that it is supposedly hassle-free: no hardware, no software and presumably no huge staff of IT employees. The latter is certainly true--but that is not to say companies can stop investing in their IT human resources just because they have moved some or all of their applications to the cloud. On the contrary, one of the biggest hidden costs of cloud computing is the training costs that some companies have to undertake to realign capabilities.
Source: CRM Buyer