Both Landon Collins and Jake Fisher would need to fall a ways for the Panthers to get them at those picks.
All the good DL, OT, and QBs are gone in the first 20 picks. The top 2 safeties and LBs are typically gone as well. When you are sitting at the bottom of the first round the BPAs the fall are typically RB and WR.
2014 BPAs that fell to the late 1st were WR and TE. Kelvin Benjamin, Marqise Lee, Jordan Matthews, Allen Robinson, Jace Amaro, and ASJ.
2013 It was WR and RB. DeAndre Hopkins, Cordarelle Patterson, Robert Woods, Giovanni Bernard, Le'Veon Bell, and Eddie Lacy.
2012 It was WR, LB, RB and TE. Doug Martin, Stephen Hill, Alshon Jeffrey, LaMichael James, Reuben Randle, Bobby Wagner, Coby Fleener and Lavonte David.
2011 It was WR, RB and TE. Mark Ingram, Randall Cobb, Torrey Smith, and Kyle Rudolph.
2010 It was WR, TE, and LB. Demaryius Thomas, Dez Bryant, Rob Gronkowski, Golden Tate, Sean Lee, Navorro Bowman and Brandon Spikes.
Past 5 seasons of players who dropped to the end of the first round and into the second round. They were projected higher by "experts".
This season I am expecting that the BPAs dropping to the late 1st round and 2nd round to be Melvin Gordon, Todd Gurley, Davante Parker, Devin Funchess, Jaelen Strong, Dorial Green-Beckham, and Devin Smith.