Haven't you answered your own question there? A player who has been in the squad for 2 years that you've never seen play....
Ok, perhaps he isn't "rubbish" but if he had the right level of general talent isn't there a chance that he would have played for the first team in the third tier of English football a little more often?
Granted, the 'evidence' is more circumstantial than tangible but, David, the clues are there as we go throooooough the keyhole...