Clearwire chairman stepping down today

According to Bloomberg, Clearwire's chairman, Craig McCaw, will step down from his role within the company today. Clearwire has struggled to raise enough money to continue to build out its 4G WiMAX network, and it was reportedly going to run out of cash next year. In November Clearwire announced that it was cutting 15 percent of its employees and was delaying a potential CLEAR-branded WiMAX…