Mauricio Pochettino says Tottenham are at a crossroads and believes it will be impossible to continue overachieving in the manner they have.
Spurs are on course for a fourth-successive top-four Premier League finish and are in the semi-finals of the Champions League this season, all done against the backdrop of their £1billion stadium being built, a crippling injury list throughout the campaign and no signings in the last two transfer windows.
Pochettino previously said the completion of the club's stadium represents the closing of a five-year chapter, but he does not know what comes next, only that it will be tough to carry on operating in the same manner.
"I think we're going to have time to talk," he said. "Now we're so focused on trying to finish the season. But if you ask me if we can repeat next season, I cannot guess.
"I said to you all that when we finish the season I think it's a moment to close a five-year chapter, to analyse, to talk a lot and to give the real value of that period. It was amazing.
"The problem is, what do we want for the next chapter of the club? Now we've finished the training ground, finished the stadium.
"What does the club want to achieve in the next one, two, three, four or five years and what are the fans going to expect from the club?
"There's many things to talk about and put on the table, and then try to be realistic.
"We cannot live like we have lived in the last five years - on the perception side and on the reality side.
"We achieved a lot of things. We overachieved maybe. I don't know.
"Because of our ambition, the way that we work and many things we can praise, we're here now in a very good position. But what next?"