McIntosh held the Head Coach role with the Australian Diamonds from 1995 to 2003, leading them to two gold medals at the Kuala Lumpur 1998 Commonwealth Games and the Manchester 2002 Commonwealth Games, and two World Championships in 1995 and 1999. McIntosh led several unbeaten campaigns with the Diamonds, racking up a 94% win ratio.

Prior to coaching the Australian national side, McIntosh held Head Coach positions at the Western Australian Institute of Sport and the Australian Institute of Sport, as well as coaching the Australian under 21 side.

McIntosh has continued to support the development of coaches around the world as part of coaching committees and advisory panels, most recently completing three terms as World Netball Coaching Advisory Panel (CAP) Chair.

McIntosh has worked with a number of different teams since coaching Australia, including Central Pulse in the ANZ from 2007-2008; Singapore from 2009-2011; and Jamaica where she worked as Technical Director and Head Coach and for the 2014 Commonwealth Games in Glasgow and the 2015 World Cup in Sydney.

McIntosh joined Dragons in April 2023, and will remain the Head Coach for the 2024 season.