Posted by ESPN.com's Adam Rittenberg
Check out these three newcomers this fall at Purdue.
OFFENSE -- Ralph Bolden, RB, So.
Bolden played sparingly last fall, but his breakout performance didn't come until spring practice. In four spring scrimmages he rushed for 420 yards and four touchdowns, putting himself right in the mix for the starting running back spot. Bolden was a standout high school back who sustained a major knee injury his senior year. Though Jaycen Taylor returns from a torn ACL, several young backs will have opportunities this fall, and Bolden leads the way.
DEFENSE -- Kawann Short, DE, Fr.
The departures of Alex Magee and Ryan Baker create some openings on the defensive line, and Short looks ready to step up. After redshirting in 2008, he received the team's newcomer award on defense during spring practice. Short boasts excellent size at 6-foot-4 and 310 pounds, but he's also a good athlete, having played basketball with Purdue standout E'Twaun Moore in high school.
SPECIAL TEAMS -- Antavian Edison, WR, Fr.
Purdue loses primary punt return man Desmond Tardy and Kory Sheets, who shared kickoff return duties with Aaron Valentin last year. Edison brings impressive credentials as a return man in high school, averaging 27.2 yards on punt returns and 35.8 yards on kickoff returns during his senior year. He also scored four return touchdowns (two punt, two kickoff). You have to think he'll get a chance in the return game.