In a notable AFL coaching switch, Robert Walls replaced David Parkin as coach of Carlton in 1986, while Parkin took over at Fitzroy in a direct swap. Here's a more detailed breakdown: Parkin's Tenure at Carlton: David Parkin coached Carlton for several years, including a period of success, but eventually faced a downturn in form. Walls Takes Over: After Carlton endured three consecutive unsuccessful finals campaigns under Parkin, Robert Walls took over as coach in 1986. Parkin's Move to Fitzroy: Coincidentally, Parkin then became the coach of Fitzroy, creating a direct swap with Walls. Parkin's Return to Carlton Parkin returned to coach Carlton from 1991 until 2000.