Why not both ?
"CIOs thinking of shifting to the cloud or kicking off a flagship big data project would be better off talking to their lawyers than their techies before starting to leaf through glossy corporate presentations."
Actually I think they're even better off talking to both. One can shed light on how much time and effort would need to be put into such a project (think costs) and the other can tell you all about all the possible attached legal issues and possible liability options.
Nothing new here IMO. Same can apply when a company decides to do business with a certain hosting provider for their website services.