Tottenham's hierarchy may have plenty of regrets over the transfer business of the past, but perhaps none are quite as scarring as last summer's market and the damage it has done.
Spurs were made to look weak at times last year, as targets came and went, with rivals left and right snapping them up instead of the Lilywhites.
In the end, very few of the arrivals in that market made the impact that many would've hoped for, as Tottenham narrowly avoided an embarrassing relegation from the Premier League.
After a clear warning shot from last campaign's dismal performance, work is already being done to improve the team, erasing the ghosts of transfer windows past.
Plenty of the deals being conducted are with a view to the future, but perhaps the club would do well to look back at last year's window to push for one star they missed out on.
Tottenham Revive Morgan Gibbs-White Interest
Last year, Tottenham missed out on a few players, one of them being Nottingham Forest star Morgan Gibbs-White, after a long pursuit of the playmaker.
The England international had a £60m release clause in his deal, but his side decided to offer a new contract that would keep him at the City Ground until 2028.
Tottenham quickly moved on, with a move for Eberechi Eze falling through, before the Lilywhites eventually landed Xavi Simons for the role instead.
It hasn't quite worked out for the Dutchman, who struggled to match the pace and physicality of the Premier League, even though there were signs that he has the quality to take control of a game.
A serious knee injury looks set to rule Simons out for a while, as Dejan Kulusevski's condition remains unknown, Mohamed Kudus has battled injury issues, and James Maddison has only just returned from a long lay-off of his own.
With that in mind, SportsBoom reports that Tottenham are back in for Gibbs-White once again, following another impressive campaign with Nottingham Forest.
Spurs aren't the only team in the mix, however, as Aston Villa, Chelsea, Manchester United, Arsenal and PSG have all been listed with interest.
It's no surprise, given the campaign Gibbs-White enjoyed, with his manager Vitor Pereira describing the star as "special" with his displays for the team.
That creates a potentially tough environment for Tottenham to operate in, especially as all their rivals have the advantage of being in Europe next season.
However, it also represents a chance to fix a mistake from last summer.
Tottenham's Premier League Mistake
Tottenham made several mistakes last summer, one of them was not being able to convince Gibbs-White to make the move from Nottingham Forest.
The other is the lack of Premier League experience they brought in, which translates to stars being unable to adjust to the demands of the league as quickly.
In signing within the division, there is almost a guarantee of a base level quality that the star will bring, which was the strategy Manchester United followed when they signed Bryan Mbeumo and Matheus Cunha.
The only signings made like that last summer were Joao Palhinha and Kudus. That blueprint is now one that Tottenham are following closely, with Marcos Senesi and Andy Robertson adding that experience of the division, while pursuits are ongoing for Jan Paul van Hecke and Savinho.
Throwing Gibbs-White into the mix would not only fix the error of missing out on the star, who showed his worth with the individual displays for Forest, but it will add that proven ability to the team.
Spurs must add that extra quality, especially in the midfield, to get the team moving in the right direction once again, and that starts with throwing everything at landing the Nottingham Forest star.