Salesforce chief Marc Benioff squared off against Microsoft in an earnings call late last week that boiled Microsoft's more recent failures to a single method. Calling it the "Zune strategy," he argued that Microsoft kept repeating the strategy it took with its self-designed but largely unsuccessful MP3 player, expecting different results. Along with failing to topple Salesforce's Sales Cloud with CRM Dynamics, Microsoft had tried to push Windows tablets and the Zune as iPad and iPod rivals without having anything special beyond the brand name and price.