A number of the club's World Cup players have struggled so far in Brazil.
A feature of last season for Spurs was the sheer number of disappointing performances from players capable of so much more.
The likes of Mousa Dembele, Jan Vertonghen, and Paulinho, among others, carried plenty of expectation on account of their impressive performances in the 2012-13 season.
It was hoped that a change in manager, from Andre Villas-Boas to Tim Sherwood, would improve performances for this group of talented players, but it failed to have the desired effect.
Now, moving into World Cup matches in Brazil, several Tottenham players have continued to struggle to perform, seemingly hinting that Pochettino will have a big job on his hands to fill them with confidence and encourage them to form once more.
Tottenham's three Belgian stars, Vertonghen, Demeble and Chadli, were arguably the country's weakest players against Algeria, with the former Ajax defender conceding the penalty that put them behind and both Dembele and Chadli being withdrawn to make a much more impressive attacking side. The latter two are likely to be dropped for Beligum's next game with Russia.
Even more of a concern for Spurs is the ongoing poor form that Paulinho is continuing to show, with the contrast between his contribution at the Confederations Cup last summer and in his two World Cup showings stark.
It was enough for Dutch legend Clarence Seedorf, who knows a thing or two about playing midfield, to label the former Corinthians man as: "Very disappointing.
"He is a midfielder who is not particularly offering an offensive contribution or a defensive contribution, for me that is too much."
Other Spurs players like Hugo Lloris, Nabil Bentaleb and Benoit Assou-Ekotto have enjoyed decent if unspectacular games.
It is still relatively early days in the tournament, but already sides are heading home. With Brazil and Belgium likely to make it to the next round, these players will be trying desperately hard to improve before they return to North London.
It is clear that whatever signings Pochettino would like to make, his first task will be getting the best out of the players already at his disposal.