Feb.1 (GMM) Bernie Ecclestone has suggested Mercedes can cope without its current team boss Ross Brawn.
Ecclestone told F1 business journalist Christian Sylt: "They have got Toto there and they have got Niki. That will probably be enough."
So far, Wolff has said Mercedes wants Brawn - in a "technical role" - to stay, but also in question is the future of the team's chief executive, Nick Fry.
Already departed, after a 22-year Mercedes tenure, is Norbert Haug.
"I think the system at Mercedes needs to work," Wolff told cityam.com.
"If you have more good people it is not bad news but I think everybody needs to understand what his role and position is."