Whitmarsh, who was changed by Cowell final yr, was provided his outdated job again however is claimed to have refused.
Whitmarsh instructed BBC Sport: “I made a decision to go away Aston Martin in 2023 and, while Lawrence has been very beneficiant, I now not needed a job within the staff.”
The rupture has been brought on by a disagreement between Cowell and Newey over who’s in cost.
Newey, an F1 design legend and winner of 12 constructors’ and 13 drivers’ world titles with Williams, McLaren and Crimson Bull, is main work on the staff’s 2026 automotive.
Cowell as CEO is meant to supervise the staff however Newey’s standing, each when it comes to his file, and as a shareholder and the staff’s largest earner by far, is inevitably in a extra highly effective place.
Newey left Crimson Bull particularly as a result of he had fallen out with Horner as a consequence of the allegations of sexual harassment and coercive, controlling behaviour made in opposition to Horner by a feminine worker.
Horner was cleared of the fees by two separate inner investigations, however the allegations led to main inner ruptures inside Crimson Bull, who additionally suffered a decline in efficiency.
With no signal of an enchancment within the inner tensions or efficiency, Crimson Bull eliminated Horner after the British Grand Prix.
In September, the 2 events reached a settlement that noticed Horner obtain a pay-off price 60m euros (£53m).
On the time of his departure, Newey instructed colleagues he didn’t need to be in the identical room as Horner, a Crimson Bull supply instructed BBC Sport.
However there may be stated to have been a rapprochement between the 2 and in the summertime they attended an Oasis live performance collectively.
Nonetheless, it’s removed from sure that Horner will safe a job at Aston Martin.
It could be that Stroll decides he doesn’t want a full-time determine of such excessive profile, given he’s de facto staff principal as the general authority and proprietor.
Cowell could be the fourth senior chief to go away his position at Aston Martin.
Otmar Szafnauer was sacked in early 2022 and changed by Mike Krack, who was demoted to chief engineer after Cowell took on his position.
The staff are additionally going by means of a main technical restructure with seven senior design engineers leaving their roles earlier this month.
The staff are hoping for a leap ahead in competitiveness subsequent yr, when new guidelines may shake up the grid they usually change into Honda’s engine accomplice.
