Alfred Morris nose for the end zone and uncanny ability to make defenders miss are well documented.Whats less obvious about the Redskins running back is his tireless work ethic. In fact, he occasionally has be told by the coaching staff to conserve energy in practice.Alfred is very conscientious, offensive coordinator Kyle Shanahan said Thursday. He never feels like hes arrived. Hes working every day in practice and walkthroughs.Shanahan added: He only goes one speed. We try to slow him down in walkthrough because hes running as hard as he can.Morris pulls up to Redskins Park each day in a 1991 Mazda with crank down windows. On Sunday, he'll arrive in Week 5 of his first NFL season tied for the league lead in rushing touchdowns (four) and ranked fifth in rushing yards (376).I dont even pay attention to that, Morris said. I heard that stat. But I dont look up that stuff. I dont be on the Internet. I dont be on these news channels or anything. I just run. The only stat I focus on is wins and losses.As impressive as Morris has been, Kyle Shanahan said its the 23-year-olds hunger to improve that sets him apart.Hes always going to get better because he works at it, Shanahan said. Als best thing is running the ball, which everybody sees. But hes got to get better in all those other aspects and he has. Just catching the ball, hes come a long way since OTAs. You feel confident throwing him the ball.Shanahan also said Morris continues to make significant strides in pass protection. Hes come a long way, he said. All guys out of college struggle with protections because its a lot more complex with the looks that you get. Hes more upset with himself when he has a bust in protection than when he has a bad run. When you have a guy like that, you have a chance to learn it quicker than others.