that sorta thing happens,
when a player bursts into the league due to the #1s getting injured, but more likely than not the player who is suddenly dealt the starting position fails immediately or performs sub-par. these fairy tales do happen, but the chances of you getting a Tom Brady or Ben Roethlisberger out of the deal are slim to none. plus, the fact that he is a WR and not a QB also decreases that chance of sudden super stardom.
but good luck. I forgot who Denario Alexander is, but maybe he will have the opportunity to remind me