NBA Draft Now a Tripod (3 Heels)

It was announced today that Harrison Barnes, Kendall Marshall and John Henson are all declaring for the NBA draft. While this announcement is awful for Roy Williams, it's awesome for NBA fans and tankable teams. 

What I do not quite get about their collective entry: Why is John Henson ranked third among the prospects? There is always a dearth of available centers and Henson has improved his offensive game throughout the year. Though scrawny, he's demonstrated an ability to catch and shoot, per what the pro game requires.

More importantly, he's a defensive force, averaging nearly three blocks and only 1.6 fouls. There just simply aren't many players who boast a 7'6'' wingspan and happen to play under control. In other words, not many athletes could end up becoming the sane version of Javale McGee.

So either this means:

A) I'm missing some flaw in Henson's game.

B) I'm undervaluing Kendall Marshall and branded Harrison Barnes

C) The center position has lost its verve in the NBA. 

D) Henson has to be quite angry at former UNC big men Brandan Wright and Ed Davis for costing him a lot of money.