As long as you have a few 'batsmen' that can bowl a bit. Which is why Watson, Marsh and Smith are dead certainties, and why I get the Maxwell in our top side thing. Faulkner at 8 or 9 strengthens the batting. Then you have Johnson, Harris and Starc. All can bat.
Smith needs to bowl a bit more I reckon, he's going to get smashed a fair bit but he is a wicket taker (you may need to spend a bit to get one though).