Pretty much dead and buried. Since pitches were covered the off spinner has pretty much become a peripheral figure in the game. Underwood was unplayble on a drying surface (I recently saw the farce that was the Pakistan test match in 1974 when rained seaped under the covers) but on a really good dry pitch (in Australia, v WI in 1976) he was pretty mediocre.

Only expect the off spinner to get rewards in Mumbai dustbowls and if they throw the ball.