Did Bradman foresee the umpire 'referral 'system?

Cricket Australia has discovered confidential letters written by Sir Donald Bradman during his days as the game's administrator.

 

Out of the lot, "one letter suggests that a batsman should be given out leg before wicket if he does not play at the ball – even if it is pitched outside leg stump."

 

I wonder whether Bradman had an inking of the referral or review system.