Aussie retailer Coles Myer said Rick Allert will be its new chairman as of Monday.

The news follows weeks of boardroom wrangling between outgoing chairman Stan Wallis - who is due to retire after the group’s agm on November 20 - and Solomon Lew who is up for re-election to the board.

The pair have been at loggerheads over the composition of the board and whether Coles Myer should off-load its troubled department store unit Grace Bros.

Allert said: “I am committed to helping John Fletcher (CEO) and his team achieve their five-year vision to become Australia’s number one retailer.”