Thomas Tuchel has become a pivotal figure in international football, with Anthony Barry as his sole English coach. Barry, a former midfielder, rose from Wigan to Chelsea's first-team coaching role under Frank Lampard. When Tuchel took over at Chelsea in 2021, he retained Barry, who later joined Bayern Munich.

His expertise in set-pieces, honed through analyzing 17,000 throw-ins, has been critical to Tuchel's success, including the 2021 Champions League win. Barry's international experience spans Ireland, Belgium, and Portugal, while his bond with Tuchel deepened through shared training and strategy sessions. The duo now leads England's World Cup preparations, emphasizing team spirit over tactical trends.