Erik ten Hag felt Manchester United took more risks with their second-half changes as they failed to secure the two-goal win over Real Sociedad to top their Europa League group.
Ten Hag hooked Donny van de Beek and Victor Lindelof for Marcus Rashford and Scott McTominay in the 58th minure and introduced Fred and Harry Maguire for Christian Eriksen and goalscorer Alejandro Garnacho in the 82nd minute.
Maguire, who was dropped for Lindelof, doubled as an auxiliary striker as United resorted to aerial passes in an effort to secure the second goal that ultimately eluded them.