Exum played against everyone in the Nike Hoops summit and looked like the best player there, on a team with Wiggins and against the best US players in his age group. He has legit size and even though the scouting on him is limited, he has never looked bad once in any of the opportunities people have had to see him. The only real knock on him is that he didn't play in the NCAA (or the D-League, Italy, France, Spain, Argentina or the Adriatic League) so we could get a better look at him against top competition.
Anyways, while the players between 5-11 may all look about the same to us, we have a hall of famer player/executive with a great track record drafting for us. I'd much rather Danny pick BPA from his perspective instead of taking the scraps at the end and just hoping all the other GMs are terrible, which is essentially what people are resigning themselves to.