Package commitments in my opinion work better for schools like SLU who will take away a scholarship for someone they might not need in order to grab someone as highly sought after as Liddel. (Remember the rumor of Tatum and his teammate). If my understanding is correct, once you give a scholarship to a player you have to have a good reason to take it away. So if Liddel went to duke with his friend then goes to the nba 1 or 2 years later, they are stuck with the player they might not have wanted.
Duke doesn’t need a package deal to sign a recruit.