For Arizona's Derrick Williams, this can mean a few things. For one, he is not likely to be the top pick in the draft as the Cavs will probably look to select Duke point guard Kyrie Irving with the top pick in the draft. After that, anything is possible.
Minnesota could use Williams as the Timberwolves are set at point guard and center. Williams could be a great fit there with certain pieces already in place. He could play the three or four and would be a promising piece to the puzzle to go along with players like Johnny Flynn and Kevin Love. At this point, the Timberwolves look to be the best bet to draft Williams, but let's look at other possibilities.
If he drops to Utah and the Jazz select him, he joins a team that just signed Paul Millsap - a player comparable in size to Williams - to a long term contract and there are several other players that already fill Williams' positions. If the Jazz end up with Williams, they would have to find a way to move Andre Kirilenko and his huge contract elsewhere or simply let him sit on the bench.
Cleveland could select him with the fourth pick if he is there. The Cavs need just about everything and Williams would likely play small forward with J.J. Hickson already on the roster. Chances are he would join Irving and form a very good tandem to build on for the future.
If for whatever reason Williams lasts past the fourth pick, he could end up in Toronto. The Raptors already have players like Julian Wright, Linas Kleiza and a few other players that fit the role Williams could play, but they don't have Williams' potential.
The sixth pick is owned by the Washington Wizards and - as big of a shock as it would be to see him drop this far as it is - it's highly doubtful he lasts past the Wizards. Washington doesn't possess much talent at Williams' position and his game would fit perfectly with point guard John Wall.
Most people expect Williams to go second overall, but Minnesota has surprised people in the lottery in the past. Minnesota already has Michael Beasley at the three and Kevin Love at the four so it's not out of the realm of possibility that the Timberwolves pass on Williams.
Either way, Williams should hear his name called early and wherever he goes, expect him to make an immediate impact.