What other factosr you meant?
I have no idea, but I
think the cap takes into account the amount of skills (but also the skills which don't affect salary). So if he's a multiskilled player, he should hit his cap at a lower salary than a monoskilled player. Don't quote me on this, though.
"Air is beautiful, yet you cannot see it. It's soft, yet you cannot touch it. Air is a little like my brain." - Jean-Claude Van Damme