Guenther Steiner was one of F1's longest-serving Team Principalscurrently in post before his shock exit from Haas. TheAmerican-owned outfit has opted to change direction and insteadpromote Ayao Komatsu to the post to place greater focus onoptimising the squad's engineering potential. The departure meansthat the entire grid's Team Principals' total longevity can'tsurpass Christian Horner's tenure in charge at Red Bull, anincredible feat underlining just how perfect the two parties arefor each other. Ahead of the start of car-launch season and the2024 F1 World Championship, take a look at the table below to seehow long each Team Principal has held their posts. F1’slongest-serving Team Principals