Nico Rosberg doesn't believe Mercedes would be making the right call to swap out Valtteri Bottas for George Russell, if rumours of an imminent switch for 2022 are accurate.
Rosberg, whose departure from Mercedes at the end of 2016 opened the door for Bottas' arrival, reckons it's going to be a tough decision for team boss Toto Wolff to make.
"That’s the big question at the moment," Rosberg told Sky Sport Germany.
"I think from a British perspective, you can be really excited about the future because you have two extremely talented up-and-coming drivers.
"You’ve got Lando Norris and George Russell. Russell of course being a Mercedes driver. Certainly, Toto Wolff… he’s going to be thinking about it very, very carefully. It’s difficult to know which way he’s going to go.
"It’s not something I think he should do."
Rosberg didn't go into detail about why he doesn't believe Mercedes should make the switch, but the German Champion could be implying the obvious issue of team harmony. Rosberg and Hamilton's relationship was acrimonious to the point of being detrimental to both, unlike the partnership between Hamilton and Bottas.
However, signing the young and hungry Russell alongside Hamilton could spell trouble more similar to what Rosberg and Hamilton experienced. But Rosberg believes the prospect could also be very interesting.
"From a fan perspective it would be interesting to have a change and to have someone new in that second car alongside Lewis," he explained.
"Someone who is really going to give Lewis a run for his money in the same team. A young guy who can replace Lewis as No 1 driver in the future at Mercedes.
"From that point of view, the fan’s perspective, we would be quite happy to see a change there and see something new."