A prominent law firm that has more than 30 offices located worldwide is considering going to a cloud service for all of its document desktop applications, storage and information management needs. Desktops will not possess any applications or stored files and all mobile activity will require web access or use of a jump drive. The firm partners expect client billing revenue will increase by 35% while costs will be reduced by 20%. Identify the revenue and costs considerations and other relevant issues that should be considered.