With one of their 7th round picks [219th overall] the Redskins selected UCLA WR Terrence Austin, a 5'10" speedster who, weighing less than 170 pounds, seems too skinny to play in the NFL. However, he has reportedly run a 4.38 in the 40, so he's fast as hell and could find a role as a kick returner, something the Redskins need.
Austin is a pretty good route-runner and has impressive burst off the line of scrimmage, but at his size it is easy to see NFL cornerbacks easily jamming him at the line of scrimmage. His quickness off the line helped him avoid getting jammed in college, but it will be more difficult to get away with that against the bigger and stronger defensive backs in the pro game.
Draft Insider rated Austin as the 113rd-ranked wide receiver in the nation in 2009, so he's a long shot to make something of himself in the NFL. The Redskins are pretty weak at wideout, but Austin doesn't look like the sort of player to improve the position very much. The best one can hope for Austin, I'd think, is that he turns into a pretty good kick returner and makes contributions in other ways. It'll be interesting to see if someone so skinny can actually play in the NFL. Putting on some muscle mass might be a good idea for this kid.