You're probably right about Wiggins,but i'm not saying that kids should be able to jump from HS to the NFL.
For certain positions I agree.For example Offensive lineman aren't anywhere close to competing in the NFL after one year from a physical standpoint.Skill position players however would make the transition easily in my opinion.You don't need to be a physical freak to play WR in the NFL.Same can be said for defensive secondary positions.Everyone knew Eric Berry was a 1st round pick after his Freshman year,what did he gain physically from those extra two years at Tennessee? Being a skill position player is all about polishing your technique,not about physicality.