123. With Marinelli’s coaching, Ryan Russell could end up being the steal of the draft for the Cowboys. His immense potential is unquestioned, but his lack of production deeply concerns scouts. He has all the physical tools you could ever desire in a left end prospect for a 4-3 defense, but the technique needs a makeover. Russell, like Sample, needs a year or two to get going, but when they do, watch out NFL.. DE. Purdue. Ryan Russell. 163. player