The Dallas Cowboys may boast the best wide receiver duo in the NFL, leaving little margin for error in training camp for wideouts on the roster bubble. Valdes-Scantling's training camp has been marred by drops, as Cowboys reporters have noted multiple miscues from the 31-year-old. Marquez Valdes-Scantling's brutal Cowboys training camp showing no signs of improvingThere isn't a lot of room to work with in the red zone. Marquez Valdes-Scantling's experience doesn't carry much valueThe Cowboys don't have much experience behind their top four WRs, but that shouldn't be why Valdes-Scantling sticks around. It's impossible to know what Brian Schottenheimer and the Cowboys are planning, but Valdes-Scantling probably can't afford another bad practice with the way Dallas' other receivers have performed.