Spinal Tap had better luck with drummers than Maryland is having with its quarterbacks. The Terps have now lost their top four quarterbacks to season-ending injuries, including three in the past two weeks. The latest casualty, true freshman Caleb Rowe, tore his ACL in last weekend's loss to Boston College. Coach Randy Edsall said freshman linebacker Shawn Petty, who played quarterback in high school, will move under center Saturday against Georgia Tech.