Mercedes motorsport boss Toto Wolff believes working out how to give multiple drivers Formula 1 seats next season is a "good problem to have".
Lewis Hamilton and Valtteri Bottas both need new deals beyond the end of this season to stay with the works team, while Mercedes junior Esteban Ocon is waiting in the wings at its customer Force India.
Mercedes reserve driver George Russell has also indicated Mercedes will help him into F1 next season if he performs well in Formula 2 this year.
Asked by Motorsport .com about its 2019 headache, Wolff replied: "It is a good problem to have.
"We are very satisfied how Valtteri has been going these days, and Lewis we don’t need to talk about – he is the best of the current drivers in my opinion.
"Then you have these kids growing up, like Ocon and George. I am optimistic about the future Mercedes line-up."
Hamilton and Mercedes have both indicated that extending their relationship, which started in 2013, is a mere formality.
"We haven’t talked for a few days or few weeks because it was so intense getting our act together with the team and all our priority has been concentrated on that," Wolff said in Azerbaijan.
"But we are very aligned with what we expect from each other in the future and it is just finding time to sit down."
Mercedes signed Bottas following Nico Rosberg’s shock retirement after winning the 2016 world championship.
Bottas earned a one-year extension for 2018 and strong form since a qualifying crash in the Australian Grand Prix has boosted his prospects of a new deal.
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