Los Angeles Lakers superstar LeBron James is wanting to again climb the Western Conference tree. Will the Dallas Mavs help prove it to be too tall to conquer? Los Angeles Lakers superstar LeBron James reportedly “smells weakness” in the NBA Western Conference as the postseason fast approaches, a suggestion that he is taking teams such as the Dallas Mavericks lightly. Based on his team’s performance this year, is he suffering from delusions of grandeur? ESPN’s Brian Windhorst reported that James, as well as fellow former champions Kevin Durant (Phoenix Suns) and Stephen Curry (Golden State Warriors), see the West as…