The DESTINY attribute is a field in players.dbf that controls a player's development potential and the likelihood that they will become star players. Its values range from 1 to 8 with 1 being the best rating. Players with high DESTINY ratings are not always guaranteed to turn into superstars, however they have a much better chance of doing so compared to players with lower DESTINY ratings. Conversely, players with a lower DESTINY rating do have a chance of improving but do not have the same potential as a player with a higher DESTINY rating.
In earlier games, this attribute was labelled CAREERPKG though it served the same purpose. CAREERPKG values ranged from A to J with A being the best rating.