Manchester United’s pursuit of Mauricio Pochettino raises an old question: are they hiring the coach who transformed Tottenham, or the reputation that transformation created?

As the Argentine heads to Old Trafford, his appeal remains inseparable from those years in north London, when Spurs challenged for titles and reached a Champions League final with a conviction that repeatedly exceeded expectations.

There has been silverware since, including a French league title with Paris Saint-Germain, while his solitary Chelsea season ended with signs of recovery. Yet neither spell established a legacy comparable to the one he built at Tottenham.

That does not make Pochettino yesterday’s manager. It does, however, make his prospective appointment a fascinating test of football’s memory. United need more than the promise of what he once achieved. They need evidence that, seven years after leaving Spurs, he can still build something that can last at this level.

Pochettino transformed Tottenham from European hopefuls into a side that expected to compete with England’s strongest. Appointed in 2014, he delivered four consecutive top-four finishes, a Premier League runners-up finish with 86 points in 2017, and the club’s first Champions League final in 2019.

His demanding, aggressive football gave Spurs an identity, while Harry Kane, Dele Alli and Son Heung-min flourished. Yet the absence of silverware remains the qualification attached to that achievement. Dismissed in November 2019 as results deteriorated, he left behind something harder to quantify than trophies: a belief that Tottenham could belong among Europe’s elite with conviction.

Paris Saint-Germain gave Pochettino something Tottenham never did: silverware. Appointed in January 2021, he won the Trophée des Champions, Coupe de France and the following season’s Ligue 1 title. Yet those honours did not settle the argument over his standing among Europe’s elite. Paris expected domestic success; Champions League success was the defining ambition. A semi-final appearance in 2021 was followed by the collapse against Real Madrid in 2022, when PSG surrendered a commanding position.

He departed that July, his trophy cabinet fuller but his reputation scarcely enhanced.

Chelsea offered a different challenge: bringing coherence to an expensive, inexperienced squad. His sole season, 2023-24, contained damaging setbacks, including defeat by Liverpool in the League Cup final, but also measurable progress. Chelsea finished sixth with 63 points, a 19-point improvement on the previous campaign, after winning their final five league matches. They also reached the FA Cup semi-finals.

Pochettino’s association with Manchester United stretches back a decade. His lunch with Sir Alex Ferguson in 2016 intensified speculation as he built Tottenham into title contenders. Further links followed, particularly after Ole Gunnar Solskjaer’s dismissal in November 2021, when Pochettino was managing Paris Saint-Germain. He also emerged as a leading candidate for the permanent position in 2022, only for United to appoint Erik ten Hag. The attraction has repeatedly survived changes in United’s leadership.

For Spurs supporters who had hoped the summer would bring Pochettino home, his prospective arrival at Manchester United carries an additional sting. Fans had sung his name during Thomas Frank’s troubled tenure, but Tottenham’s deteriorating position demanded action before the Argentine’s World Cup commitments with the United States were complete.

Roberto De Zerbi arrived on March 31 with seven league games remaining and ultimately secured survival. His appointment on a long-term contract also closed the vacancy that might otherwise have offered Pochettino a route back.

Pochettino later acknowledged an approach, although he told Sky Sports a reunion had never been close. The timing simply failed to align.

Tottenham needed an immediate rescue, and De Zerbi delivered it. Supporters can appreciate that achievement while still wondering what a Pochettino return might have brought. Seeing him potentially rebuild United would give that unanswered question a particularly uncomfortable answer.

Pochettino’s comments on the High Performance podcast make his prospective move to Manchester United more emotionally complicated for Tottenham supporters. Asked which former club held a special place in his heart, he answered unequivocally: “It is very simple: Tottenham.” He spoke warmly about the affection he still receives and argued that Spurs should aspire to challenge for the Premier League and Champions League.

For some Spurs supporters, watching him pursue those ambitions at Old Trafford could feel like another opportunity lost. The manager who helped them believe they could compete with Europe’s best would now be charged with restoring a domestic rival.

Others may take a more pragmatic view. Tottenham dismissed Pochettino in 2019; he has already managed Chelsea, and affection for a former club cannot reasonably amount to a promise never to work elsewhere. Interestingly, Tottenham have since won the Europa League without Pochettino in charge.

The upset lies less in any supposed betrayal than in what his appointment might invite: comparisons. Every sign of progress at United could revive questions about whether Tottenham should have brought him back and whether the qualities supporters remember remain as powerful as the memories themselves.

Which version of Pochettino would arrive in Manchester?

The Tottenham architect who developed players, established an identity and made sustained progress possible, or the manager whose spells at PSG and Chelsea ended before anything similarly enduring emerged?

United would be betting that his greatest strength remains building a team, provided the conditions allow it. His record since Spurs offers encouragement and reservations. Old Trafford would test whether that reputation still reflects his capabilities, beyond nostalgia.