Thing with del piero is that he will be most effective when put in at the 60 minute mark or something
if he'd start, the defenders would easely outpace/endure him, making it hard to have succesfull actions.
however, at the houre, defenders usually are getting pretty tired of beeing pressed the entire game, alex comes on and its like we are 5 years back in time.
also excellent to bring on when we are defending a lead to create a massive streak of freekicks.