Making the transition from one position to another in a team is always going to need some adjustment.
It is also likely to take time.
But for Rotorua United teenager Forrest Dunn, the move from goalkeeper to defender has been seamless.
He has made such a success of the move that he has been put forward by the club for the WaiBOP Premiership Player of the Year award.
It was coach Ian Walker's call to bring Dunn out of goal into a right-sided defensive role at the start of the season.