Riley didn't bring Gebbia (or Patrick O'Brian) in to red shirt.Frost didn't bring Martinez in to red shirt
Pelini didn't bring in Johnny Stanton in to red shirt.
Solich didn't bring Curt Dukes in to red shirt.
Martinez has yet to take one snap in a D-1 scrimmage and didn't play football last year. I'm glad they signed a 4* kid who was a highly-touted recruit. Whether he's starting material remains to be seen.
A kid busting out for a year like UCF's QB had is the exception, not the rule.