NBA free agency season is almost upon us. While this year's list of free agents doesn't contain as many superstars as those in years past, there could be plenty of player movement via trades, which we've seen in recent offseasons. Among the big names who are free agents are Dallas Mavericks point guard Kyrie Irving, who could be headed to the fifth different team of his career. His former Brooklyn Nets teammate James Harden could be following him into free agency if Harden declines his player option with the Philadelphia 76ers.