STRENGTHS: Has the body type desired at the position with excellent length and the frame that can be sculpted with more time in the weight room. Barnes is a coordinated athlete with flexibility and movements that allow him to cover a large area. He did show improved football awareness with accurate reads to recognize what the offense was doing and react accordingly.
WEAKNESSES: Mechanics and pass rush process seemed to stall on his 2013 tape, showing little improvement in this area. NFL teams draft traits, skills and potential over college production, but scouts need to see development, which usually means improved stats, for Barnes to be the highly touted pro prospect that many thought he could be after his freshman season.
--Dane Brugler (8/4/14)
After earning Freshman All-American honors in 2012, Barnes entered the 2013 season with high expectations, but the sophomore struggled to live up to the hype as he managed only 28 tackles, 4.0 tackles for loss and a pair of sacks in 10 starts.
The decline in performance and production could be attributed to several areas, including members of the coaching staff hinting that teams game-planned for him last year. But whatever the reason, Barnes needs to bounce back in 2014.
12/31/2014 - Penn State loses OT Donovan Smith, DE Deion Barnes to 2015 NFL Draft...Barnes leaves State College after an impressive 2014 campaign that saw the junior total 44 tackles, six sacks, resulting in an All-Big Ten Honorable Mention selection. "Can't believe I've walked my last time out of the tunnel," said Barnes. "I want to thank the Penn State family for being with me through the rough times. They're the best fans in the nation. I'm going to miss playing in front of 107,000. "I talked with my family and we believe it's best for me to move forward and forgo my fifth year. I want to thank the fans one more time and I want to thank Penn State for the opportunity you've given me. This has been the best four years of my life. I love y'all so much." Even with Smith and Barnes gone, Penn State returns 17 starters from the 2014 squad that finished 7-6 and defeated Boston College in the Pinstripe Bowl. - Chip Patterson, CBSSports.com