The potential re-appointment of Fabio Paratici must also be considered.
Paratici, who left his position as Spurs’ managing director of football after Italy’s highest sports court rejected an appeal against a two-and-a-half-year ban concerning alleged financial irregularities dating back to his spell at Juventus, is in talks over a return when his suspension is lifted in July.
How influential could he be in the decision over Postecoglou and his possible replacement?
How would Paratici – who also has some interest from clubs in Saudi Arabia – and Lange co-exist in relatively similar roles?
If Paratici does complete a return, does that mean current chief of football Scott Munn’s days are numbered, particularly with Vinai Venkatesham already confirmed as the club’s next chief executive?
This is one for the true believers – Postecoglou
But before all that, the bonuses
In the short term, Levy will sign off a £2m bonus to Postecoglou for lifting the club’s first European trophy since 1984.
The players will also split a performance-related package of around £3m for their success, though it is understood that automatic pay increases for Champions League qualification are not universal across all personal contractual agreements.
Either way, you’d imagine Levy will have no qualms with paying for his club’s historic success.
We shouldn’t, however, expect the Tottenham chairman to continue spending lavishly this summer. History tells us it’s not his style.
But building on Wednesday night’s euphoria will come at significant expense.
Forming a squad capable of competing in the Champions League is an altogether different proposition from seeking to improve a team that could yet finish 17th in the league.
Spurs players touch down at Stansted
Experience the goal for recruitment
BBC Sport understands that the sense within the club’s recruitment team is that their young squad should be supplemented with more experience.
For instance, an established central midfielder is believed to be on the club’s radar this summer.
If they lose vice-captain Cristian Romero to La Liga, they will look to replace the Argentina international with a ready-made replacement.
Spurs tried to sign Crystal Palace and England international Marc Guehi in January and remain interested in the centre-back.
They will be at pains to keep the experience already at the club. Rodrigo Bentancur, whose current deal expires next year, has held initial talks over an extension.
The club have already exercised an option to extend captain Son Heung-min’s contract until the summer of 2026.
That isn’t to say Tottenham will abandon their remit of signing young talent, with Southampton’s teenager Tyler Dibling a target.
And whoever is the manager will have a massive say as you’d expect.
Not for the first time, it’s gearing up to be an interesting summer at Tottenham.