In 2012, one in five consumers switched companies they patronize, including wireless phone, internet service and retailers, according to new Accenture study. This marks a 5% increase in switching over 2011 levels. The eighth annual Accenture Global Consumer Survey found that 85% of respondents said companies could have done something differently to prevent them from switching. The survey, which polled more than 12,000 consumers in 32 countries, found that among those consumers who would have s...