Al takes 16 shots a game. Why can't we let Hayward take 3 more shots? Millsap take 3 more shots? Favors gets 2 more. Kanter with 2. Mo with three. Burks with three. Carroll with one. Williams with two? There you go.
Guess what? With Al gone, you would find that we would have more efficient possessions which = more points scored on our possessions. Also, with more efficient possessions, we would probably end up getting more possessions overall which = more points scored per game. I bet if you took Al out of the lineup, you would find that we become a better, more efficient team, and actually scored more points per game.
And we would be better defensively.