Deila wants Celtic to claim the treble
Ronny Deila declared his treble dream was "still alive" after Celtic's 2-0 Scottish League Cup final win over 10-man Dundee United at Hampden Park.
Goals from Kris Commons and James Forrest gave the Norwegian boss his first trophy since taking over from Neil Lennon last summer.
United skipper Seán Dillon was sent off in the 56th minute after a reckless challenge on Celtic defender Emilio Izaguirre, and Forrest had a late penalty saved by goalkeeper Radoslaw Cierzniak. The Scottish Premiership leaders take on United in their William Hill Scottish Cup quarter-final replay at Parkhead on Wednesday night and then again in the league at the weekend, and Deila will turn his attention to those two competitions after celebrating the cup victory.
The Celtic manager said: " We have talked about this (treble) many times. It is a dream.
"It is so tough to do it but it is possible. The dream is still alive and I am happy.
"Now we have one trophy and on Wednesday we have to be back again to make another cup, so it is going quick in this job.
"It is a great feeling. It is good to get a good start when you are a manager at a big club like Celtic.
"This was the first trophy we could win and we did it. You get the appetite and you want more.
"I am proud of the boys. I think we did a professional job so we should really enjoy this moment."
Deila, though, was far from enamoured by the antics of substitute John Guidetti who replaced Leigh Griffiths after 69 minutes, when Forrest also came on for Commons.
The on-loan Manchester City striker lost the battle with Forrest for the penalty after the winger was brought down in the box by United Paul Dixon, and appeared to go into an angry huff.
Former Stromsgodset boss Deila said: "Both of the players who would have taken the penalty were off, Leigh and Kris. It looks like it was first to the ball.
"I don't like that they argued about that.
"It was stupid. It is not the team spirit I want. We have to learn from the situation.
"There are a lot of emotions in this situation: strikers, especially, want to score goals but again we have to put the team in front of ourselves.
"This is not the team spirit. This is individual thinking and I don't want to have that," he added.