Arsenal boss Wenger planning for January: We'll be busy
Wenger is on the lookout for someone who can immediately improve his squad and he will also consider letting others move on.
"Yes, I will be busy," he confirmed. "I don't feel under pressure to name names because you [the media] find them on your own.
"We have the potential to be in the Champions League with what we have. We are open to strengthening the team, but the difficulty is to find what strengthens us. [You don't always find that with] the players available on the market.
"Yes [we want players who can make an immediate impact], that is why it is so difficult as well. Man United bought Robin van Persie for £24million and he is 29 years old.
"They have scouts all over the world. They looked everywhere. Don't think that they just came in and bought Van Persie, they looked everywhere else. But to find the quality of striker that would strengthen a top Premier League team at the moment in the world is difficult."