NBA's Top 2013 Free Agents: 20-11

With his thunderous dunks and emphatic blocks, Gibson is a highlight waiting to happen for the Bulls. The 6-foot-9 forward's length is also an integral piece of a Chicago defense that held opponents to a league-low 88.17 points per game last season. Having lost fellow big man Omer Asik this offseason, the Bulls have expressed interest in locking Gibson up before he can even hit the market.