PITTSBURGH -- Jon Baldwin caught a 45-yard touchdown pass and set up two other scores with difficult catches, Tino Sunseri threw for three touchdowns and Pittsburgh overcome a series of first-half mistakes to beat Rutgers 41-21 on Saturday.   Rutgers (4-3, 1-1 in Big East) played a week after defensive lineman Eric LeGrand became paralyzed from the neck down while making a tackle against Army. His prognosis for recovery from a spinal cord injury is uncertain, and a trust fund already has been established to provide support for his care.   Dion Lewis, the nation's leading returning rusher after gaining 1,799 yards last season, gained 130 yards on 17 carries and ran for a touchdown during his first 100-yard game this season. Sunseri was 21 of 27 for a career-high 307 yards and now has seven touchdown passes as Pitt (4-3, 2-0) has easily won its first two Big East games.