Firms are ramping up their vendor management capabilities, specifically in building a vendor management office (VMO). These efforts represent a key part of firms' strategy to bring more maturity and process discipline to IT and take an "activist sourcing" approach. Companies want to drive costs down and drive IT's performance up. Vendor management no longer represents a contracting function in procurement; rather, firms have plans to create full supplier relationship life-cycle governance capabilities. Forrester has identified some key best practices for managing vendors; these include supplier tiering and supplier performance assessments.