Arsenal manager Arsene Wenger claims Tottenham's summer spending spree could end up destabilising the balance of the squad rather than turning them into Barclays Premier League top four contenders.
Spurs may be about to lose star man Gareth Bale to Real Madrid in a multi-million deal, but nevertheless head to the Emirates Stadium on Sunday having made significant moves in the summer transfer window.
They have brought in Paulinho, Etienne Capoue, Nacer Chadli and £26million striker Roberto Soldado, who has already scored twice in the Premier League, and on Friday confirmed the signing of Romanian defender Vlad Chiriches from Steaua Bucharest. They are also set to wrap up deals for Roma forward Erik Lamela and Ajax playmaker Christian Eriksen.
By contrast, Wenger has so far been unable to land any of his major targets, completing only the free transfer signings of midfielder Mathieu Flamini and France Under-21 striker Yaya Sanogo.
The Arsenal manager, however, maintains just simply adding numbers is not always the answer.
"I know all the players they have bought. For the rest, we will see how well they integrate and how well they will do. It is very difficult to predict that," said Wenger, whose side again finished above Spurs in fourth place last season.
"They try very hard (to bridge the gap) of course, that is normal. In our job, there is always a technical risk when you buy more than three players because you unbalance a little bit the stability of your squad.
"I know that in England it is very well seen, but it is always difficult when you bring so many players in, how everybody will do to predict that."
Wenger added: "Your squad always has a balance. It is more of a risk (adding numbers).
"It can work fantastically well, but there is a little risk on the stability of the squad and on your technical consistency.