The Celtic forward scored again for the Bhoys last night as Deila's men beat Motherwell 4-0 to return to the summit of the SPL.
And Griffiths' manager believes his left foot is world class, a factor that does no harm to his chances of staying within the Celtic team.
The 24-year-old admitted after the game that his biggest aim is simply to keep his place in the Hoops' first team and Deila's comments should certainly give him hope.
RD on Leigh Griffiths: "There is a lot of competition up front but Leigh is an exciting player and his left foot is world class."— Celtic Football Club (@celticfc) January 22, 2015
RD: "I don't think I've met a player with a player with a better left foot and his goal last night was important."— Celtic Football Club (@celticfc) January 22, 2015
Meanwhile, Anthony Stokes, who registered two assists for Celtic last night, admitted after the match that he was surprised to be starting for the Bhoys - considering his relative lack of fitness.
Stokes helped the SPL champions move a point clear of second-placed Aberdeen with a game in hand over the Dons.
“I was a bit surprised to start because I’ve only trained for a day or two so I still need to build up my fitness and my sharpness. But I felt I contributed to the team and four goals at home is good," Stokes told Celtic's official website.
The 26-year-old has been linked with a move to Leeds United recently by the Daily Mail, although performances like last night's will surely only sway Deila one way when it comes to the forward's future.