High Quality Content by WIKIPEDIA articles! Off theory is a bowling tactic in the sport of cricket. The term off theory is somewhat archaic and seldom used any more, but the basic tactic still plays a part in modern cricket. Off theory involves concentrating the line of the bowling attack just outside the off stump. This area is often referred to as the 'corridor of uncertainty', as unless a batsman knows exactly where his off-stump is, he will have to play a shot at any ball bowled there. (Not to do so runs the risk that the ball will hit off-stump, which would not only get the batsman out but leave him looking extremely foolish.)