I genuinely think this is Australia's worst bowling line-up for a long time.
Clark and Lee are carrying this attack but on a featherbed of a pitch like this, Clark is almost ineffective. This leaves Lee, Johnson and Casson but everyone knows that Mitchell Johnson is just not Test quality. His length is too short, his line is erratic and I rarely see him swing it. All hopes are therefore on Brett Lee and Beau Casson, a very inexperience young Test bowler who Dwayne Bravo is taking apart. No doubt Casson has potential but he's being carted around.
Lee is the only one who looks like he could get a wicket. Australia seriosuly need to get their bowling in order (and drop Johnson!) before they begin losing Tests.