Michael Carrick's interim reign at Manchester United began with a 2-0 win over Manchester City, reviving talk of club 'DNA' after Ruben Amorim's dismissal. Critics like Gary Neville demanded a manager who fits United's traditions, but history shows iconic bosses like Sir Alex Ferguson arrived with no prior connection to the club.

The concept of football 'DNA' often surfaces only when teams struggle, serving as nostalgia for past glories. Tottenham's current woes under Thomas Frank highlight this, as fans yearn for a style from the 1950s despite a history of underachievement. Coaches without club links, like Frank, face shorter leashes if their methods deviate from perceived traditions.

Ultimately, 'DNA' is a comfort blanket, not a blueprint. Ferguson, Wenger, and Mourinho rewrote their clubs' identities to win. For United and Spurs, the real test is whether their current leaders can forge a new path, not just mimic the past.