England hedging their bets on will Swann won't pay off. I'm recent times Kumble has been the most successful overseas spinner, 49 wickets @ 37, which isn't great. Other spinners have struggled, Murali (being the best of all time averages 70 per wicket), Harbhajan(similar average to Murali, but gets picked as he owns Punter), Vettori, Kaneria & Ajmal.
Going into Gabba I wouldn't be surprised if Australia went in with 4 seamers. Gabba offers the most swing and seam. Also Ponting has said his 3 front line seamers are Johnson, Siddle & Hilfenhaus.
Steven Smith is way behind Hauritz. Smith isn't certain to get a gig in India, so why would he play in Australia?