The Bhoys returned to winning ways in style, as they hammered Dundee 6-0 at Celtic Park in the Scottish Premiership.
Tom Rogic, Leigh Griffiths, Emilio Izaguirre (two), Scott Brown and Nadir Ciftci were on target for the home team.
Deila was delighted with the performance of his Celtic players and told BBC Sport: "It was a brilliant performance. The atmosphere was nice and we won 6-0. It doesn't get better than that.”
The 31-year-old is a free agent at the moment, having left Premier League outfit West Ham at the end of the 2014-15 campaign.
RD on Carlton Cole: 'He was here to watch the game and get to know us, to see the city and see the club, and we will have talks with him.'— Celtic Football Club (@celticfc) September 20, 2015
RD: He’s a very good footballer & he’s shown in the Premier League & the Championship that he can score goals, so we'll see him in training.— Celtic Football Club (@celticfc) September 20, 2015
Celtic have three recognised strikers on their books at the moment - Leigh Griffiths, Nadir Ciftci and Anthony Stokes - and it seems that manager Ronny Deila wants to add one more.