tha IC33 Uclyciincs QUARTERBACK: Senior Steve Smith has first shot at the position after two years as a starter. As he comes back from Rose Bowl shoulder injury, the job is his to keep - or to lose. Dave Hall, the senior backup, encouraged both himself and others as Smith's replacement in a losing role last; New Year's Day. Third-stringer Jim Harbaugh, the anxious sophomore, has a high school reputation as a slick California passer. His father, Jack, is head coach at Western Michigan following a stint as a Schembechler assistant. Young Harbaugh may play a noticeable role as soon as this season.