Averaging the grades from multiple sources Football Outsiders ranked all 32 team draft classes and the Panthers ended up dead last:

32. Carolina Panthers GPA: 2.00 Highest Grade: C+ (Kiper, Silva) Lowest Grade: C- (Prisco, Kadar) Comments: Quantity does not equal quality, at least when it comes to Panthers cornerbacks. Dave Gettleman admitted to drafting for need in trying to replace Josh Norman, but no one was impressed with the trio of corners he came away with this year. Multiple commenters questioned the second-round selection of Samford's James Bradberry; their two harshest graders actually thought Round 5 pick Zack Sanchez was a better pick than either of the two cornerbacks Gettleman drafted first. The Carolina GM has generally earned favorable reviews for building a Super Bowl roster after inheriting a cap-strapped mess, but this is the second consecutive year the Panthers have finished in the bottom five of these rankings.

Count me in the group of those questioning the 2nd round pick. If you're looking for positives or reasons why the Panthers had Bradberry rated over the other two CBs they drafted this post on SPARQ measurements shows Bradberry rated more highly than Worley or Sanchez. In fact among CBs in the draft Bradberry ranked 4th overall behind only Jalen Ramsey, Vernon Hargreaves and Sean Davis. You'll have to click through to see the diagram and table of SPARQ scores. Bradberry's overall score of 132 puts him in the 'Elite Athlete' category.

Top 12 SPARQ-iest athletes in the 2016 NFL Draft, Dallas Cowboys crosshairs | Cowboys Wire SPARQ Definition SPARQ score takes into account five characteristics; player weight, 40-yard dash time, 20-yard short shuttle, bench press and vertical jump. These measurables correlate to "bigger, stronger, faster", testing speed and agility against a players size to "normalize" the results. A 300 lb lineman running a 4.6 is far more impressive than a 210 lb defensive back running a 4.45, for example. The best of the best, the most elite athletes, will score between 130 and 150. Score Below 100 – Likely below average for many NFL Athletes Score Between 100-115 – Average for many NFL Athletes Score between 116-130 – Very Good NFL Athlete Score Above 130 – Elite NFL Athlete

If Bradberry had only better production in college he probably would have been a first round pick. Yet production as a college CB can be affected by offenses determined to throw in the other direction.

Conversely you will see in the chart linked earlier that Worley and Sanchez had respectable production in college but they re instead limited athletically. In Worley's case I imagine it was his size and ability to play the ball in the air that resulted in the 2nd round grade by the Panthers.

So in the end Dave Gettleman knows what he wants in a CB for his secondary and scheme and doesn't really care how you rank his draft class. It's all just noise:

Panthers GM Dave Gettleman didn't 'shop hungry' to replenish secondary - Carolina Panthers Blog- ESPN "Again, I like to think by now you guys realize I don’t care about the outside noise," Gettleman said. "I really don’t. I don’t read stuff. I don’t worry about it. "It’s us getting killed [in 2013] for the draft and then they have a re-draft and four of the guys should have gone in the first round. Beauty is in the eyes of the beholder. We know what we need for our team to be successful and that’s the kind of players we’re looking for."

Given how wrong the pundits were about the 2013 class I think we (I) need to give Ol' Dave the the benefit of the doubt.