midfielder Kris Commons believes Celtic will go from strength to strength after winning the first trophy of Ronny Deila's reign.
Deila is on course to become only the third Celtic manager to win a domestic treble, after Jock Stein and Martin O'Neill, following his side's League Cup triumph last Sunday.
That added a new medal to Commons' cabinet but the playmaker is not about to rest on his laurels ahead of the Scottish Cup quarter-final replay against Dundee United at Parkhead.
The 31-year-old appeared likely to leave the club in January as former Celtic manager Neil Lennon targeted him for a move to Bolton but the former Scotland international instead signed a new two-year contract and netted the opener against United at Hampden.
"We've not reached the top. It's not like we've conquered it, but that's where we need to be and we are working hard to get there," he said.
"If we do win the treble we will be looking to do it again next year and the year after then add Champions League group stages and try to get last-16.
"You've got to keep striving for greatness. If you think you've reached the top and stand still that's when you start going backwards."
Commons' words were music to Deila's ears as the Norwegian continues to wipe out early impressions of him following Celtic's poor Champions League qualifying campaign.
"I think we have progressed a lot in the things I want to bring into the culture," he said.
"There is so much to go but we have done a good job so far. It's all about tempo. The players are much lighter - as a team we have dropped 50 kilos in six months. Things are getting quicker and sharper in training."
Deila will not make major changes to freshen things up for the third of their four consecutive matches against United.
"If you are good at something you have to continue doing what you are good at, not start doing something else," he said.