Williams has confirmed former Mercedes technical boss Paddy Lowe as new chief technical officer and board member.
Lowe, one of the key architects of Mercedes' recent spell of dominance in Formula One, left the team at the end of 2016 after it secured a third consecutive sweep of the drivers' and constructors' championships. Following his departure he was heavily linked with a move to Williams, something which the team finally confirmed on March 16.
Lowe replaces Pat Symonds, who also left at the end of 2016, and will take a shareholding in the team and a position on the board of directors alongside Claire Williams and Mike O'Driscoll.
Speaking about the appointment, Lowe said: "I've always had a deep respect for Williams -- my first team in Formula One. It is a huge honour to return in this leadership position and to have the opportunity to become a shareholder. I am extremely motivated to play my part in bringing success back to the team.
"The vision for the future set out by the Williams Board is powerful and has compelled me to join an organisation committed to building on its unique legacy and to reaching the pinnacle of Formula One once again. I'm looking forward to this exciting new phase to my career working with Claire, Mike and Nick and with the rest of this great team -- especially [Sir] Frank [Williams] himself, who is one of the most committed 'racers' I know!"
Williams herself said the appointment signalled her family's intent to return to the front end of the F1 grid.
"I am delighted that the team is welcoming Paddy back to Williams in the role of Chief Technical Officer," Williams said. "Having someone of Paddy's calibre and engineering competence is not only a morale boost for everyone at Williams, but I know it will also significantly support our efforts to return this team back to the front of the grid.
"Our ambitions at Williams are unwavering, we want to win races and championships, but to do that you need the best talent in the business. In Paddy we believe we have just that as well as a leader who will drive change. This is a game changer for us and once again makes us extremely excited about this team's future."