Eddie Jordan suspects Renault team management are guilty of "bullying".
The former F1 team owner and boss, now a pundit for British television, is referring to Eric Boullier and Gerard Lopez's outspoken criticism of Nick Heidfeld's results and leadership qualities.
German veteran Heidfeld replaced injured regular Robert Kubica this season, but now Renault test drivers Bruno Senna and Romain Grosjean are being linked with the seat.
Irishman Jordan told Sport Bild he has a theory about the pressure being put on Heidfeld.
"It could even be described as bullying," he said.
"They probably want to wear him down so he throws in the towel voluntarily."
Jordan, however, has a high opinion of 34-year-old Heidfeld.
"For me, he is Mr Consistency. I know this because Nick drove for me for a year. 2004 was a very difficult year for Jordan financially, and we could not give him the car that he deserved.
"The same is true also at the moment of the Lotus-Renault," he added.