Christian McCaffrey, Curtis Samuel already a big part of Panthers' offense

Curtis Samuel could benefit from the Panthers' trade of Kelvin Benjamin. Daniel Bartel/Icon Sportswire

Here’s a look at the first-half impact of the Carolina Panthers' 2017 draft class:

Christian McCaffrey, RB, first round: He hasn’t made the big plays many predicted in camp, but he leads Carolina in receptions with 49 (most in team history for a back) and stresses defenses with his ability to play running back, slot receiver, wide receiver and Wildcat quarterback. He also returns kicks. He’s a huge part of what the Panthers do offensively, as offensive coordinator Mike Shula constantly says. Grade: Above average

Curtis Samuel, WR, second round: A hamstring injury in training camp and early in the season slowed his progress. He has only seven catches for 47 yards. But his role is about to be expanded after the trade of No. 1 wide receiver Kelvin Benjamin in an attempt to get more speed on the field. Grade: Incomplete

Taylor Moton, OT, second round: He wasn’t good enough to beat out Daryl Williams at right tackle in camp, so he hasn’t gotten an opportunity there. When left tackle Matt Kalil has missed a play or two, backup guard Amini Silatolu has replaced him. Not much to grade on Moton. Grade: Incomplete

Daeshon Hall, DE, third round: He played only nine snaps in the opener and then was inactive before a knee injury landed him on injured reserve. He has promise. Just not this year. Grade: Bring on 2018

Corn Elder, CB, fifth round: The hope was he’d be a good option at nickelback when Captain Munnerlyn needed a breather or moved outside. A knee injury kept Elder out of training camp, and he’s spent the season on injured reserve. Grade: Bring on 2018

Alex Armah, FB, sixth round: The staff thought he was a year away from being ready to contribute when they released him after training camp and signed him to the practice squad. He has been on the active roster the past five games and is showing promise in a limited role. Grade: Incomplete

Harrison Butker, PK, seventh round: He’s having a great season, connecting on 18 of 19 field goal attempts and all of his extra points. He was 5-for-5 on field goals in a win against Denver. It's just that he's done all this for Kansas City, which signed him off the practice squad after the Panthers went with veteran Graham Gano. Grade: Near perfection