It's fairly common in today's sports world for the best players to recruit free agents in an effort to help their team acquire the top talent and improve their chances at winning a championship. For the Miami Heat they have a history of this working out quite well. Dwyane Wade helped recruit LeBron James and Chris Bosh to the Heat in the summer of 2010 that changed the landscape of the NBA. It's resulted in three straight trips to the NBA Finals and two straight championships.
However because of the Big 3 the Heat are able to boast on their roster they don't have much flexibility in adding free agents this summer or possibly even next summer depending on if James Wade and Bosh exercise their early termination options. The lack of flexibility with adding free agents to their roster this summer was a big reason Dwyane Wade decided not to help recruit potential signees.