According to CBS Sports, legendary NFL coach Bill Belichick, introduced in December as the next head coach at the University of North Carolina (UNC), has not yet officially signed his contract with the school. Despite this, the six-time Super Bowl champion has actively started assembling a coaching staff and recruiting talent. UNC confirmed this week that a fully executed contract between the university and Belichick remains unsigned. Sources suggest this could create a legal gray area regarding the potential buyout terms if Belichick were to leave for an NFL opportunity. Belichick has reportedly signed an offer sheet with UNC, but…