Precision, potency, penetration - none of it was on show from Celtic. Or, at least, by any of the attacking players who started.
Dominant on the ball as ever, they were a frustrating watch in the final third. No one was more frustrated than Hogh.
A striker who plays between the posts - unlike the lively Camilo Duran who was introduced after 73 minutes - the Norwegian was fed very little from his wingers.
Tounekti racked up touches of the ball, and often passed the mismatched test against Todd, but failed at the final hurdle routinely. Lots of balls were swung into the box, but little - if any - of quality.
The Tunisian appears to be a player lacking confidence - in stark comparison to Yang Hyun-jun who has headed off to the Asian Games in great form - often making the wrong decision in front of goal.
Hassan can do magic things with the ball at his feet, but his final product left a lot to be desired.
In making five changes – Johnstone, Dane Murray, Oliver Sorensen, Tounekti and Hogh – O'Neill ought to have been hoping to learn his best pieces in this big jigsaw of a team he needs to pick.
Pre-match, he admitted he had "no idea" what Sorensen was capable of. He might still be wondering.
What he will know for sure, if he didn't already, is that Yang will be an almighty miss; that Duran is his diamond; and there is still a lot of work to be done if his side are to reach the levels he – and supporters – want them to.
A lot of questions to mull over before the small matter of a trip to Ibrox on Sunday.