By Melissa Rohlin
FOX Sports NBA Writer
Hours before NBA free agency began, Kevin Durant turned the league upside down by reportedly requesting to be traded from the Brooklyn Nets, a move that suddenly made one of the top five players in the NBA available.
Now, many — if not all — of the 29 other teams in the league are scrambling to figure out a viable trade package to potentially acquire the two-time champion, 12-time All-Star, two-time…