Since last summer, the Cleveland Cavaliers have been playing catch-up with the rest of the NBA. Once the Cavaliers chose to trade Kyrie Irving to the Boston Celtics, they have been engaged in a race against time to get whole before the postseason begins. Lately, in a season in which the team hopes to make a run at a fourth consecutive NBA Finals, it’s simply been one thing after another. Their season hit yet another snag Monday, when the Cavaliers announced Coach Tyronn Lue would be leaving the team for an undetermined period of time to address the health issues that have plagued him virtually the entire season. In a statement, Lue said this leave of absence is intended to create the opportunity for him to return to coaching the Cavaliers this season.