After CEO Jost Capito, another senior member of McLaren has departed the Woking-based outfit, with team manager David Redding joining rival Williams.
Redding first joined McLaren in 1995 as chief mechanic following a seven-year stint with Benetton. He briefly left the team for a three-year spell at Stewart Grand Prix but returned to Woking in 2000.
A McLaren spokesman confirmed Redding's departure to Motorsport.com.
"We can confirm David Redding is leaving McLaren Racing.
"He will be replaced by Paul James, who will become team manager, with a focus on the operational and managerial nature of the role.
"Our head of race operations Andrea Stella will assume some of the role's sporting responsibilities and engagement with the FIA. Kari Lammenranta will replace Paul as our new chief race mechanic."
One team's loss is another team's gain however, as Williams appears to be stepping up its recruitment efforts.
In addition to Redding, Williams has allegedly agreed terms with former Mercedes tech boss Paddy Lowe to join its ranks as a director and shareholder.
Lowe was placed on gardening leave last month by Mercedes but his move to Williams is expected to be completed very soon.
GALLERY: F1 drivers' wives and girlfriends
Keep up to date with all the F1 news via Facebook and Twitter
Yuki Tsunoda’s long-awaited promotion from Racing Bulls to Red Bull Racing was supposed to be…
Formula 1’s most glamorous race will be getting an equally glamorous from 2026. Next season,…
Mercedes may be powering a large chunk of the Formula 1 grid right now, but…
Helmut Marko is closing the chapter on a remarkable 25-year career as Red Bull’s motorsport…
As the dust settles on a thrilling 2025 F1 season, McLaren's Oscar Piastri is keeping…
In an F1 paddock often defined by fierce rivalries and ruthless competition, an unexpected storyline…