"Of course we were in a position to take more points, but people have to be realistic with the level of the opposition that we're playing against," he said.

"For most of our players it is a huge step up. For us to get to the finals ahead of Germany and Holland, I'm not sure how many other teams in Europe would be capable of doing that.

"We have a route through the play-offs and the good thing for us there won't be anyone in the play-offs at the level of Germany and Holland."

As it stands, Northern Ireland look likely to face Bosnia and Herzegovina away from home in March, though the picture could yet change.

If Hungary can beat Wales on Tuesday to qualify automatically, Northern Ireland could yet get a home fixture but the outcome will not be known until Friday's draw in Nyon.

O'Neill plans to stay on and take charge of those play-offs alongside his new role as Stoke manager, though inevitably speculation is already rife as to who will eventually replace him.

O'Neill is expected to play a role in deciding his successor and is certain he will be handing over a team on the rise.

"There has been an influx of new players, relatively-inexperienced players who have been asked to play international football at a very early stage of their club careers," he said.

"How those players have adapted to that is testament to the likes of Craig (Cathcart), Jonny (Evans) and (Steven Davis).

"They have been the backbone of the consistency of the team and have made it easier for those younger players who have come in.

"I think we're in a good place. If you look at our qualification record... before we played Germany in September, it was over 60 per cent in terms of our win ratio, so for a country like Northern Ireland to have that win ratio in qualification games is extremely pleasing.

"We just have to try and maintain this level. We hope that in future UEFA is a little bit kinder to us when they pull the balls out of the pots, and we get a better draw but otherwise, the team is going in the right direction."

Craig Cathcart stands to earn his 50th cap in Tuesday's match, though his regular defensive partner Jonny Evans could miss out after suffering with an illness.

Jamal Lewis has already been ruled out, having returned to Norwich for assessment on a knee injury suffered on Saturday.