Ferrari's recent struggles have led to speculation about former Red Bull Racing team principal Christian Horner joining the team.
However, talks with Horner could "stall" due to the same reasons that affected Adrian Newey's potential move.
Christian Horner's two-decade association with Red Bull ended following this year's British Grand Prix, with a rift between himself and the team's Austrian owners proving to be a critical issue.
Meanwhile, Red Bull have shown improvement in recent races, with Max Verstappen emerging as a title challenger, which could help the team finish above Ferrari in the constructors' championship.
The Singapore Grand Prix highlighted Ferrari's ongoing struggles, putting pressure on Fred Vasseur's team.
Author's summary: Ferrari's struggles spark Horner rumors.