You shouldn't be doing that any way :P

That develops range and footwork, what he's talking about is being able to think about a game plan whilst under pressure.

He wants to be able to be looking for his opponents weakness, his best shots, his worst shots, how he likes to defend... the whole picture and then how he can make it work for him.

Only way to be able to do that is to make footwork, defence and punching an instinct so your not conciously having to think about it so your head is free to go over strategys and tactics.