What's your take on this year's draft?

I've been following the draft process for the past 4 or 5 years, and I have to say that I've never seen this much uncertainty on first round prospects.
Why do you think that is?

I'll give you an example, based on the QB position:

Either Smith or Barkley are top 10 picks, or they aren't first round worthy. How is this possible?
I watched Shaun King today on a PFT segment, and he said Geno Smith had a TD/INT ratio of 44/6, and close to a 70% completion rate, or something like that, and people still downgrade him (considering that people didn't question Gabbert or Sanchez the years before, that's incredible).
Barkley, on the other hand, was a tier below Andrew Luck and RG III last year, and now he seems to fall out of the first round. The same thing happened to Jake Locker's stock, and he ended up being selected 7th overall.

What's going on then?