The Frenchman is renowned for drafting in young talent rather than splashing the cash on proven star names but, with the club again set to finish the season trophyless, there have been calls from fans for a change this year.
Wenger, though, has no plans to follow the likes of Chelsea's lead and said: "We are all very down and frustrated but it is not down to spending money. It is down to sticking with our policy."
He added: "Chelsea have spent magic money and still not won the European Cup. I believe our team has developed well but at the moment we are still a bit short.
"Of course I'll try to bring in one or two in the summer and whoever we get will not be short of experience.
"But the priority is to stay with the squad we have.
"What am I supposed to do, kick out a quality young player like Walcott, Fabregas, Diaby or Bendtner who is already in his national team?"
Wenger also dismissed Emmanuel Adebayor's comments that the team had gone backwards this term.
"I don't take much notice of the comments of the players. They're not coaches. They are responsible for their own performance and not an assessment of the team.
"Players at any club say they want to sign big names but never say they need someone in their position."