Despite the great interest in SaaS and cloud, many large enterprises are still grappling with the right mixture of on-premises, hosted and various cloud deployment models for their applications, infrastructure and data. And the formula for picking which apps and assets should run where will be a changing one, as business goals, economic pressures and technology advances all conspire to make last year’s IT model obsolete. Ongoing.applications, infrastructure and data. And the formula for picking which apps and assets should run where will be a changing one, as business goals, economic pressures and technology advances all conspire to make last year’s IT model obsolete. Ongoing.