Dickie E

Referees in Australia
Blue is awarded a lineout.
Blue set up lineout with 4 participating players, a receiver and another player in the tram tracks (I guess that is effectively 2 receivers).
Just before the throw is taken, the receiver steps into the lineout and the tram track player moves into the receiver position.
Is this a legal tactic?
Blue set up lineout with 4 participating players, a receiver and another player in the tram tracks (I guess that is effectively 2 receivers).
Just before the throw is taken, the receiver steps into the lineout and the tram track player moves into the receiver position.
Is this a legal tactic?