Ventana Research was the first market research firm to focus on the emerging area of sales performance management (SPM), which we define as a coordinated set of sales-related activities, processes and systems that enable organization. Over the past decade, SPM has become more science than art. Properly managing a sales organization requires effective planning, which in turn requires key performance and sales indicators built on a foundation of relevant metrics. But this is changing. As more organizations embrace the subscription business model and engage with additional selling channels over and above direct sales, the concept of the primacy of new sales is transforming to a more holistic view of revenue.