First off, his guards are better than yours. Secondly, he has more depth and better overall players than you do. You might want to add another guard before the playoff deadline to counter his SG.
One thing you can do tactic-wise is to run M2M and whatever offense you are best at. Looking at your recent games, you are versatile offensively. If you have a mismatch that serves in your favor, exploit it. If your bench is better than his, exploit it. If you look at his game ratings and see that he is weak in a certain area, EXPLOIT IT. Then you have to leave the rest to the game engine.