Speaking from an NBA perspective (I follow the NBA more than NCAA), I don't think Cousins gets drafted. He's a classic tweener--like 6'-2" (he measured just over 6'-0" barefoot at USA basketball), but with more of a SG mentality and skillset than a PG skillset. He's becoming a good NCAA PG, but he's nowhere near NBA PG level--which is what his size says he needs to be.
Unless he's Isaiah Thomas 2.0, of course.
That's another level of ball handling, though.