Cricket Australia have adopted a new coaching model for the national men's team, which will see the roles of bowling and fielding coaches absorbed within the reshaped set up.

In a major change to the former structure, CA's new boss of national teams, Ben Oliver has opted for a more fluid system, which allows for personnel to come into Justin Langer's coaching team when needed.

As part of his duties as the senior assistant to Langer, Andrew McDonald, a former all-rounder who claimed 201 first-class wickets at just under 29, is to take over the bowling portfolio formerly held by David Saker when he starts in the first Test next week.

Former West Indies and South Africa head coach Ottis Gibson had been in the mix to be the permanent bowling coach.