Wally Grant played at Costa Mesa High in the 1980s and was the Mustangs' defensive coordinator last season. But the blueprint he will use to try to succeed in his first season at the Mustangs' head coach was drawn up in the 1990s by then-coach Myron Miller.
Grant was an assistant coach with Miller during a watershed three-season run that included a trip to the CIF Southern Section Division VIII title game in 1993.
Grant then accompanied Miller to Tustin, where they continued Miller's tradition of smashmouth double-wing offense and the physical imposition of his team's will that sometimes led to lopsided scores and almost always led to appearances in the postseason.
Costa Mesa, led the last five seasons by Jeremy Osso (now an assistant at University High), has been to the playoffs three of the last four seasons, including an outright league crown in 2008 and a co-championship in 2007.