Western Australia 258 and 85 for 2 (Bancroft 34, Cartwright 23*, Whiteman 21*, Lyon 2-33) beat New South Wales 180 and 162 (Holt 54, Morris 4-46, Hardie 2-31, Rocchiccioli 2-39) by eight wickets

Morris, the 24-year-old quick, backed up his career best 5 for 36 in the first innings with 4 for 46 in the second to lead a well-balanced attack, which maintained a stranglehold over NSW, who were dismissed for only 180 and 162 in a match lasting just three days.

While a smattering of grass was evident, the pitch was not a minefield and seemingly played better on Wednesday than the previous two days as NSW capitulated amid a slew of rash strokes.

Trailing by 78 runs after the first innings, NSW's task of clawing back into the contest was made more difficult when star batter Jason Sangha was subbed out of the match with concussion suffered during training before the day's play.

Their prospects of setting WA a challenging target improved when openers Dan Hughes and Blake Nikitaras defied sharp new-ball spells to build a 48-run partnership amid sunny but cool conditions.

Morris worked up a head of steam and conjured vicious pace forcing a rushed Nikitaras into several unconvincing hooked shots. But 22-year-old Nikitaras' luck ended late in the first session when he was adjudged caught behind off a terrific seaming delivery from Hardie although the batter trudged off disappointed with the decision.

His wicket triggered a collapse, with Hughes falling in the next over to a brute of a delivery from Morris, and then shortly afterwards, Patterson was caught behind as NSW slumped to 57 for 3.

NSW's downfall was complete on the stroke of lunch when Moises Henriques fell loosely to Kelly. The long break failed to revitalise them, with Matthew Gilkes, who had replaced Sangha, trapped lbw by Morris before NSW finally offered resistance under increasingly gloomy conditions through Holt, who unleashed several reverse sweeps to blunt Rocchiccioli.

But he lacked support with the tail throwing their wickets away, including Nathan Lyon, who holed out on the stroke of tea.

Fittingly, Morris wrapped up the innings to end Holt's counter-attack and then led his team-mates off the ground leaving WA's new bowling coach Tim Macdonald understandably grinning from ear to ear.