at any serious competitive league you cant get by with a height advantage of that differential for long periods of a game with a zone. That is if he is in one of the two big man spots. I played high school, college and semi pro in my life and i'm a 2 guard who plays some small. I get by at small with bigger players who play outside but if they go to the post with 10cm it does not matter how good i am on defense i stuggle because i cant front them because of a lob pass and if i play behind them they shoot right over me. In a zone you will always have that same problem as well.
The game needs to have it balance off at some point with what guys can play what position to what ddegree and how well.
You got to know when to hold em, know when to fold em, Know when to walk away and know when to run. You never count your money when youre sittin at the table. Therell be time enough for countin when the dealins done.