The Bhoys boss watched on as his side narrowly beat Azerbaijani side Qarabag 1-0 at Celtic Park on Wednesday evening, with Dedryck Boyata's goal handing Celtic a vital first leg Champions League victory.
It wasn't the most convincing of displays from Celtic, and there continues to be some concern over new signing Nadir Ciftci.
The Turkish forward, 23, arrived from Dundee United earlier this summer, and was expected to hit the ground running as Celtic's latest top striker.
However, Ciftci has yet to find the back of the net for Celtic, and continued his barren run against Qarabag, before being joined in attack by Leigh Griffiths.
Fans have wondered whether it would be Ciftci or Griffiths to take the role of being first choice striker, and so far it has been Ciftci - but Deila told BBC Sport that he is delighted to have both players at his disposal, and even noted that the duo can play together in the Celtic attack.
"Those two can be used in different ways and can also play together so I'm delighted at having both of them," said Deila following the 1-0 win over Qarabag.
Ultimately, Ciftci must find his shooting boots quickly if he is to retain his role as first choice striker, with Griffiths - who finished last season as Celtic's top goalscorer - breathing down his neck.
Of course, it will take time for Ciftci to settle in at Celtic given that he hasn't even been with the Bhoys for a month yet, but he needs to break that goalscoring duck sooner rather than later.