KC Concepcion

Concepcion is an excellent runner, a good route technician for a rookie, and he's capable of acrobatic catches. He must improve his attack of the football when high-pointing the ball and/or extending high and away from his frame. 

In these instances, he claps onto the ball and fights it. These issues become magnified in the NFL and lead to more mistakes than they typically did in the college game, because the margins for error are much smaller in the pros. 

If Concepcion limits his drops, he could become the statistical leader of the Browns passing game as a rookie. Todd Monken's scheme will flow through the slot receiver and tight end, and Deshaun Watson always did his best work in the middle of the field. 

Concepcion as a fantasy WR2 ceiling, but there's a big trapdoor this year thanks to the QB room and his drops.