Celtic slumped to a 2-1 defeat at the hands of Premiership new boys Hearts to leave them trailing in the title race after only 90 minutes.
The Aussie watched right back Anthony Ralston score a superb solo equaliser to cancel out Gary Mackay-Steven’s opener but looked on in horror as John Souttar was given a free header to snatch a sensational victory for the Jambos.
And he admitted that his forwards - Odsonne Edouard in particular had another quiet night - MUST take more of the opportunities Celtic are creating if they are to haul themselves out of the early season slump that is threatening to derail the early weeks of their campaign.
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