Top 5 draft picks wise, who's the biggest letdown?

[Pauulzcappin]

I have yet to see a full Nets game so I don't know much about FAvors. But Demarcus Cousins has looked 1 step below the others... too many turnovers, forced shots and foul trouble in the first few games.

Anyone else have insight on this? Just thought it would interesting to open athread about it.