I'm basing this list both on my observations from the weekend while at camp as well as comments from others in attendance including Monday and Tuesday's morning practices.
Stock Rising
WR Kelvin Benjamin
I went into training camp thinking Benjamin might take a few games or half season to work into the starting line up. I now think he is a game 1 starter. He is just as good as any other WR on the roster and has made the jump to the pros look fairly easy.
WR Kealoha Pilares
I counted Pilares as a long shot going into camp but the guy has looked good. He hauled in a long pass during camp with a 5 yard buffer created by a great move. He later went over the middle and high pointed a ball in traffic. He is looking very solid and is now a front runner for the 4th WR spot.
TE Brandon Williams
Williams receiving skills were on full display the first weekend as he roamed the middle of the field. He also demonstrated an ability to high point the ball deep down the field. If he has improved his blocking then he will give Ed Dickson a run for his money. Even though I thought DC Jefferson and McNeil looked pretty good I think the 3rd TE spot is Williams to lose.
DT Casey Walker
Though I didn't hear much about Walker from some beat writers I thought Walker showed a lot of energy and quick feet in the 11 on 11 drills. While the ageless wonder Colin Cole also played well Walker could be a cheaper option at NG or a rotational player that allows Star to play under tackle. Walker could make Dwan Edwards expendable.
Stock Falling
The Punt Returners
Drops and bobbled punts abounded over the weekend. All three punt return candidates are equally bad at this point leading me to think the Panthers will look to the waiver wire for some help here. If Antoine Cason is a starting CB that only leaves Kenjon Barner and Philly Brown to choose from. Barner may still earn a roster spot as RB depth but Brown will really need to up his game to make the roster at this point.
WR Tiquan Underwood
A couple drops and a propensity to short arm the ball have me worried about Underwood. Maybe it's the number he is wearing (#11) or the fact my Bucs source says he doesn't like going over the middle, but I'm not seeing anything special with Underwood (except his hair). If he doesn't play the slot then King seems to be a cheaper clone of him while Cotchery is a more experienced option.
T David Foucault
The Canadian had a hard time adjusting to the speed of the DL, specifically Kawann Short and Colin Cole. In the one on one drills he failed to maintain leverage if he got any at all. He has a very tough hill to climb at this point but he is still out there working hard.
QB Matt Blanchard
Many of the players in training camp know they are long shots but are only hoping to make some good plays on tape that might help land a job down the road. Blanchard has no such good tape, there is only bad and ugly. On a positive note Joe Webb appreciates it because otherwise he might be on this list.