SAP's need to rewrite its Business ByDesign user interface because of Microsoft's move away from Silverlight is an issue simmering in the background. But whether it is important or not is disputed by competitors. For rival Intacct, “This is just the latest miss-step in SAP’s journey to the cloud – their poor execution has all been driven by their DNA as direct seller of on-premises software to large enterprises," says Dan Druker, Intacct's VP of marketing