A professional working at 50% of his capacity will often trump a junior working at 50% of his capacity.

Edit: I Don't know why I can't reply to the replies of this post.

What I meant to infer is that the parent to my post may have seen 'professionals' perform better than he would have expected them given their pay.

What I tried to reply is that this level of performance may still be the professional working at only 50% of capacity.

I was assuming that the amount the professional was being paid was relative to what that company would be paying everyone else. Which would lead me to conclude everyone was probably working at 50%.

Maybe that was a bit of a stretch on my behalf though :)