I disagree with you. Look inside does nothing to improve your offensive rebounding. All the focus does is force your team to take more shots inside.
It is the full court press tactic that seriously reduces your oppoent's rebounding skills on defense but not on offense. That's where you may get confused by looking at match ratings, since the ratings are an average of the two.
Anyhow, the best strategy here is to use players at all positions who have good passing and handling. For example, a centre with atrocious passing and handling skills could easily turn the ball over 15 times against a centre with good outside d. Of course your PG is the most important but if you ignore the rest of your players you will still get burned.
As for why you would use this strategy - just for the reasons outlined above. If all your players have great outside d (especially your PF and C) and your opponent has weak handling/passing on some players, then you can take control of the game via turnovers. You can't get rebounds if you are turning the ball over constantly. It is also important to have good backups and/or players with high stamina.
Run of the Mill Canadian Manager