The thought of rookie twin towers - say, Kentucky forward Anthony Davis and North Carolina center Tyler Zeller - is one that should grow on Hornets fans. Because that's likely what New Orleans is leaning toward in the NBA draft next week. New Orleans' trade with Washington on Wednesday sent starting center Emeka Okafor and small forward Trevor Ariza to the Wizards in exchange for forward Rashard Lewis and Washington's second-round pick, No. 46 overall, in the draft next Thursday. And it also opened a hole in the middle that must be filled.