I share many of the concerns about Cousins that have been expressed elsewhere, but I also just had a thought:
How many current NBA centers would you rather have them Cousins?
Without question group (of one): Dwight Howard
Only because they're a known quantity not because upside is greater: Lopez and Bynum (can't stay healthy)
Solid centers, but would you trade Cousins for them?: Marc Gasol, Kaman, Bogut (nasty injury), Yao (durability concerns), Oden (can't stay healthy), Noah (limited offensively), David Lee (solid, but a product of D'Antoni system?), Hoford (undersized), Hibbert, Bargnani, Okafor, Thabeet (I'd certainly rather have Cousins than the #2 from last year).
Great, but past their prime: Duncan, Shaq, Jermaine O'Neal, Rasheed.
Assuming he measures out at 6'11" with the reported 7'6" wingspan, Cousins may be the only player in the draft that has top 5 value at his position. Are Turner and Favors top 5 value at their position? I love Wall, but not sure Paul, Deron, Rondo, Rose, or Evans gets traded for him. And there are certainly a handful of other very solid PGs (Westbrook, Curry, Jennings, Jameer etc). There are certainly 5-10 SFs with greater value than Wes Johnson.