Re: How to beat the big dude.
I always tell people to play to their strengths. If you're not good at making contested layups, don't take it. If you're a good shooter and he's protecting the rim, pull up from a spot you're comfortable with.
If you can't finish well and you're not a good shooter, just wait for your teammates to catch up. There is nothing wrong with that and it's the right move if you don't think you can finish over him and you're not confident enough in your shot to make a free, wide open shot from anywhere not in the paint.
Don't feel forced to try and make a play when there is none.