As JH points out with his Summer league teammate, , there is plenty of competition for innings amongst quality players and pitchers.
But it isn't likely to be much different at JHU, Emory, Pomona-Pitzer, Trinity College and many other Nationally ranked programs.
In 2008/09, Trinity started something like 6 freshman, who all performed. Last season, those guys returned with a season of experience and some with Summer league experience.
Even then, TU started with season with freshman at 3B, shortstop and 2B. They ended the season with a freshman catcher and a freshman being one of their top pitchers.
Our son isn't the only one who has been drafted, he was just the first. If you look at the website, you will see two of their former recruits who are now top rated players/pitchers in the Giants and Jays organization, along with pitchers like Evan Bronson doing well in the National's organization.
In the early part of the last decade, Trinity had one of the permier DIII academic/athletic programs.
Over time, the former Administration put a heavy, heavy emphasis on criteria which seemed to adversely impact some sports like the nationally ranked football and basketball programs.
Despite that, Coach Scannell and his baseball staff recruit well, they graduate their players and they have maintained a DIII baseball program that competes with the best every year.