Colin Moffat, BBC Sport Scotland
County may have fancied their chances of an upset on seeing six changes in the visitors' line-up, but any such thoughts were soon dispelled after a moment of rashness from Brown.
With Celtic averaging around 80% possession throughout, the match resembled an attack v defence training exercise for long spells.
Oh had the chance to impress his manager but could not find a goal on his first league start of the campaign.
The striker was perhaps unfortunate to be pulled up for the challenge that led to Scales' effort not counting and the offside TV lines were far from convincing when he his first-half celebrations were cut short.
He could scarcely believe it when Laidlaw produced yet another good stop in the dying throes of the game.
Turnbull took his tally for the season to five - three against County - and played a leading role, along with captain McGregor, in the patient dismantling of their opponents.