On an organizational level, the Pittsburgh Steelers are looking to see a significant leap forward from second-year quarterback Mason Rudolph this preseason, such that it forces the team to put him behind Ben Roethlisberger as the backup, displacing Joshua Dobbs to the number three role—or possibly even traded.
Even if this is not explicitly stated, it is implied in his draft history. He was a ‘luxury’ pick in the third round a year ago. They had no need to draft a quarterback at that time after having already done so with Dobbs the year before, and with Landry Jones already in place as the proven backup.