Lenovo began to emphasize vertical integration after a meeting in 2009 in which CEO Yang Yuanqing, and the head of Lenovo's supply chain, analyzed the costs versus the benefits of in-house manufacturing, and decided to make at least 50% of Lenovo's manufacturing in-house. Lenovo Chief Technology Officer George He said that vertical integration is having an important role in product development. He stated, "If you look at the industry trends, most innovations for" PCs, smartphones, tablets and smart TVs are related to innovation of key components—display, battery and storage. Differentiation of key parts is so important. So we started investing more ... and working very closely with key parts suppliers." Previously, lack of integration due to numerous foreign acquisitions and an excessive number of "key performance indicators" (KPIs) was making Lenovo's expansion expensive and creating unacceptably slow delivery times to end-customers. Lenovo responded by reducing the number of KPIs from 150 to 5, offering intensive training to managers, and working to create a global Lenovo culture. Lenovo also doubled-down on vertical integration and manufacturing near target markets in order to cut costs at time when its competitors were making increased use of outsourcing off-shoring. By 2013, Lenovo ranked 20th on Gartner's list of top 50 supply chains, whereas in 2010 the company was unranked.