Christian Horner is barracking for Lotus to switch to customer Mercedes power for the 2015 season.
The Enstone team is having a dismal season of performance and reliability with Renault power, but the likely move to Mercedes is more complex than that.
Reigning quadruple world champions Red Bull have also struggled with Renault's turbo V6 'power unit' in 2014, but the Horner-led team has reacted by putting enormous pressure on its French partner.
There has been a management change right at the top, with Cyril Abiteboul returning to Renault from Caterham to set up a new structure for 2015 and beyond.
A key to that might be seen as Red Bull 'getting rid of' Lotus.
Dr Helmut Marko said recently...
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