Brisbane test, page-329

The appointment of the best Australian bowler as captain can only be a good thing for England's chances.
For a start they can't rest him for a test now then there's the added fatigue of having to captain as well as running in all day when in the field.
From memory Cummins usually fields in the deep that'll have to change, he'll probably line up near to Smith. Higher chance of getting a broken hand etc fielding close in.

On the negative side Carey is a better batter than Paine, assuming he takes over as wicket-keeper.