Manager Mauricio Pochettino said it was "obvious" Tottenham needed another striker, after having a bid for West Brom's Saido Berahino rejected.
The Argentine would not say whether the club would bid again for Berahino, 22.
"We identify our targets and the chairman is working very hard to bring new players in," he said.
"It is obvious we need to add some more in our offensive positions."
Rejecting Tottenham's bid, West Brom chairman Jeremy Peace said he had "no interest" in selling England Under-21 international Berahino.
Spurs, who have just one point from their opening two Premier League matches, travel to second-placed Leicester City on Saturday (15:00 BST).
"Always we talk about 10 games, after 10 games you need to be worried or happy maybe," said Pochettino.
"People will speak about how we need offensive players but we need to be more consistent because we conceded a lot of goals last season."