Williams posted 38 away at the Gabba — a 54-point miss below his 92.5 average and under his 59 BE in a tight 11-point loss. There's no injury news and no obvious role change, which makes this harder to diagnose than a tag or a vest. Carlton players often go quiet at the Gabba and this could be a one-off, but a 177-game vet shouldn't drop that far without a reason. Don't trade him on one score — watch R10 to see if this is a blip or a new pattern before pulling the trigger.