Any qb professionally rated as a first round prospect, this is a fairly accurate statement. I just edited my original comment for qb's selected #1; so I'd say that any qb professionally rated as a #1 prospect, this is even more accurate.
To the point of Young, he's being rated as a #1, with his only negative being his size. When it comes to superior talent, size may be overcome, so yes, with the right team, his chances of breaking into this elite group is as good as a larger player. I'm not saying the Texans are the right team.