CELTIC's delay over playing Giorgos Giakoumakis has left Rangers hero Barry Ferguson confused. 

The Ibrox legend admits some of the decision making in general has left a lot to ponder as an outsider. 

Ange Postecoglou's men slumped to a 1-0 away loss to Livingston at the weekend - with the Hoops looking rather toothless at the top end of the pitch. 

Kyogo Furuhashi remains out injured for at least the next few weeks, while Giakoumakis is still battling his way to full fitness. 

Speaking on the Go Radio Football Show, Ferguson questioned why Leigh Griffiths was allowed to go on loan to Dundee instead of leading the Celtic line. 

He said: "I watched the Dundee derby, he (Griffiths) had a great header just by the post, then he had another chance where the keeper makes a good save. 

"Naturally he tires as the game goes on because he's hardly played a game of football. 

"Was I surprised that Celtic let him go? I don't think he was going to get a chance there. 

"Leigh Griffiths has got to think about himself and that's by playing games of football. 

But Celtic are thin up top. Did they expect Kyogo to get inured on international duty? No. But that's the gamble you take. 

"You sign a striker who's not fit, the Greek guy. He's not fit. 

"You're at Celtic here - you need players."