Kaboul was named as the Lilywhites' captain in September, following the departure of Michael Dawson to Hull City.
Despite struggling with injuries in recent seasons, head coach Mauricio Pochettino saw Kaboul as the perfect choice to wear the armband for Spurs, ahead of fan favourites Jan Vertonghen and Hugo Lloris - despite the latter being the French national captain.
The pair were selected as back-ups for Kaboul, and Lloris walked his side out for the 2-1 victory over Hull last month following an injury to the 28-year-old central defender. Having last featured in the 2-1 defeat at home to Stoke, Kaboul missed out on the tie through injury, and continued his absence as the North Londoners overcame Partizan Belgrade 1-0 in the Europa League.
He was rumoured to be back in training and match-fit in time for the home tie with Everton last Sunday, but Pochettino left him on the bench, deciding to stick with the defensive line that had won the prior two games. Vertonghen lined up in the centre of defence alongside Federico Fazio, with Ben Davies on the left and Vlad Chiriches on the right - the only change with the ongoing suspension of Kyle Naughton.
Despite going one-goal behind to the Toffees, Spurs put in their best performance of the season to claim the victory with a 2-1 scoreline. Accidentally, and with Kaboul out the side, Pochettino seemed to stumble upon his best starting XI - with Kyle Walker to return to right-back when his recovery from injury is complete.
The Argentine coach kept the same defensive line once again for the tie with Chelsea on Wednesday evening, and, although defeated 3-0, the performance was a further improvement, and the Lilywhites were unfortunate to lose by such a convincing scoreline.
The upturn in form begs the question of what will be done with Kaboul?
Should Pochettino be wise and continue utilising the obviously successful starting XI, the club captain will remain on the bench, and Lloris should undoubtedly be named as first-choice captain.
But if he feels as if Kaboul would be better served leading the team from the field of play, the coach will have to further rotate the side and incorporate the Frenchman into the centre of the back-line, breaking up the pairing that seem suited to one another - the tactically adroit Fazio and the quicker, ball-playing Vertonghen.
It is a strange situation to be in, and one endured by Tottenham's North London rivals Arsenal last term, when club captain Thomas Vermaelen was benched in favour of Laurent Koscielny and Per Mertesacker, who performed as a convincing defensive unit. The risk lies on Pochettino's head, with his decision to name Kaboul captain playing upon his decision to include him in his first-team.
Should Kaboul return to the starting XI and performances remain at their current level, then Pochettino's faith in the Frenchman will be lauded by the public. But, should he return and Spurs start to slide down the table once again, well, his management of the side may just be questioned by the man who controls his future - Daniel Levy.