The Frenchman said: "We are still working on improving our squad but we have a base of young players who get a chance here and who started in the Premier League, such as (Wojciech) Szczesny, (Carl) Jenkinson, (Alex) Oxlade-Chamberlain, (Jack) Wilshere, (Aaron) Ramsey, (Theo) Walcott - that is unique, nobody else has done that.
"These players can have a special bond and they are on the way upwards, they are not over the hill.
"They will be better next year and that is why I am confident we will be stronger next season.
"We had a fantastic end to the season because we won eight of our last 10 (league) games.
"We have had a good pre-season and for the first time in recent seasons we have not sold any player (we have wanted to keep)."