Arsenal will know nothing but three points will do against Swansea in their English Premier League game at the Emirates.
The Gunners have been firing blanks off late and need to find some rhythm, particularly, in the final third, as they look to push on towards the top four places.
"They (Swansea) have bought intelligently and of course that gives them the basis they had last year, and the addition of the players they have brought in," Wenger told the club's official website. "It makes them dangerous.
"Of course (Brendan Rodgers) has made the basis of what the club is today and Michael Laudrup has added some players he knew from Spain who are very good additions.
"They have Michu, Pablo Hernandez, (Jonathan) De Guzman, these players and keeping (Leon) Britton, (Angel) Rangel and the players at the back. They are a dangerous side throughout, and having a good season. They are a complete unit, very creative, very technical and very mobile."
Wenger admitted his side have been lacking something in the final third. "We lacked a little fluency in the final third to take advantage when we elaborated well in the middle of the park," he said. "Perhaps we aren't finishing well at the moment. We need to add that to our game.
"However I think the attitude and the quality of our base is very strong. We have improved our defensive record quite well in recent games. We are used to scoring more goals and that's what we want to add now."
Bacary Sagna is a major doubt while Laurent Koscielny is ruled out for at least three weeks after picking up a groin strain in the 1-1 draw against Everton.
Hernandez will miss the game for Swansea, with De Guzman set to take his place, while Danny Graham won't be involved despite recovering from illness.
Expected lineups: Arsenal: Szczesny; Jenkinson, Vermaelen, Mertesacker, Gibbs; Coquelin, Wilshere, Cazorla; Walcott, Podolski, Giroud.
Swansea: Tremmel; Rangel, Williams, Chico, Davies; Britton, Ki; Routledge, Dyer, De Guzman; Michu.
Prediction: 3-1 to Arsenal
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