O’Shea said: “We dare to think a Treble is possible.
“We know if we get that little bit of luck along the way, it is definitely a possibility.
“We’re experienced enough to know, though, that if we start talking about things like that we will end up with no trophies.
“But there is a confident feeling within the team and also with the way the manager and the coaching staff have been dealing with things this season.
“The 1999 team probably had more experience in terms of age.
“But, in terms of talent, this team is up there.”