Pulled up an old scouting report on Crawford from nfl.com coming out of college into the draft - good read:
STRENGTHS
Crawford is quick to get out of his stance off the snap and has the instincts to slant and hit a gap without being touched. He is consistently disrupting plays in the backfield and is a solid tackler. He is a strong player who shows an explosive arm jolt when keeping blockers at bay. Crawford shows good change of direction when stopping to pursue plays laterally. As a rusher, his motor is the key to his success. He never gives up on a play and can use a strong burst to get to the quarterback. He has a ton of upside, which undoubtedly increases his values to teams who are set at the position and willing to patient and work with him. Despite his size, he could even play special teams early on in his career because he has such a nasty demeanor.
WEAKNESSES
Crawford is a raw prospect who only has one year of collegiate playing experience at the Football Bowl Subdivision level. He would be a project early on for the team that selects him, and he could have a tough time adapting right away. He has had trouble getting off double teams, which could be a technique issue, a likely possibility given his well-documented strength. Crawford will need extra coaching and attention to adjust to the NFL.