Who do you think will replace Warne in the Aussie side long term.
I think it's a given that baring injury or significant loss of form Stuart MacGill will get a summer, two at the most, to do his thing unchallenged, the gulf between him and the young guys is still too great.
But long term after Warne and MacGill have passed from the game Australia will need to find a spinner capable of performing as part of a four man attack unless they were to change the strategy which has brought them so much success over the past decade.
My vote goes to Casson, his control is pitiful but of the young contenders he's the only one i think is capable of regularly producing deliveries good enough to dismiss batsman at test level. He spins the ball prodigiously and has some nice variations, hopefully within a couple of summers he'll be able to control things adequately to play at that level.