Campbell calls for Blues to back struggling Zac Williams By Should Carlton persist with Zac Williams in the midfield? Some have suggested they shouldnât, including Brownlow Medallist Gerard Healy, given his slow start to the year. Williams has averaged 18 disposals so far this season, five inside 50s and four clearances playing mostly on-ball and pushing forward. However, it has been a largely interrupted season for the 26-year-old, missing Round 1 through suspension and only playing five games total after Achilles and groin niggles. He suffered another minor injury in the loss to the Western Bulldogs on the weekend, forcing him to play forward for the majority of the game.