After his season with West Coast, Wiley returned as coach of his old club Perth, succeeding
Mal Brown. In his first season (
1988), Wiley took the Demons to their second season with more wins than losses since the
1978 WANFL season, and they were unlucky not to make the finals, losing out only when South Fremantle and East Fremantle beat top two sides Claremont and Subiaco in the final round after having been third for most of the season. The following year, however, Perth fell away to sixth after being last for a substantial period and Wiley's contract was not renewed. He still has the best win–loss record, however, of any coach of Perth since
Ken Armstrong retired. Wiley later was the last State of Origin coach for Western Australian in 1998. He was for many years an assistant coach with former club West Coast, being a runner for the clubs first two premierships in
1992 and
1994 under his 1980 Richmond premiership teammate
Mick Malthouse, he was an assistant to John Worsfold in the
2006 premiership win. At the end of 2012, Wiley reunited with Malthouse at . He was appointed to the role of director development and coaching. After leaving Carlton, Wiley was appointed the coach of in the WAFL, for 2016 to 2018 seasons. In 2021, Wiley returned to West Coast as its WAFL team coach from the 2022 season, he is also the Eagles number 1 ticket holder for the 2021 and 2022 AFL seasons. ==Notes==