NBA LIVE 08

Create a character who is as tall as allowed and max out his stats. Assign this character to a team and solo play against the computer. I believe that the Indiana Pacers are the team with the worst stats, so play against them. Since there are no restrictions on difficulty, play the game on "Rookie". Set the time limit to 12 minute quarters so that you can try for the other achievements at the same time.

If you have the tall CAP, then rebounding is not a problem. A rebound is done if you grab the ball after a missed shot. For a defensive rebound, the opponent must shoot at the basket, miss, and have your player grab it on its way down. Since this is team combination for 30 rebounds, anyone grabbing it will add 1 to your total. Of course, having a tall player helps enormously.