South Africa captain Faf du Plessis said on Friday that full-time appointments concerning the national team's coaching staff and selectors needed to be made urgently.
Speaking on the team's return from a three-Test trouncing in India, Du Plessis said uncertainty over key positions was "a massive red flag".
Cricket South Africa fired coach Ottis Gibson, his back-up staff and the selectors after a poor World Cup campaign.
They announced a new structure headed by a director of cricket and a team director.
Former one-day international player Corrie van Zyl and 37-year-old Enoch Nkwe were appointed in an interim capacity, with Nkwe in charge of the team in India.
Du Plessis said he was committed to continuing as captain despite going through what he described as "the toughest period in my cricket journey".
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But he said his own position and those of the other key posts "needs to be resolved as soon as possible".
"The most important thing right now is clarity," he said.
"Someone needs to make decisions, the director of cricket first and then filter down so everyone else can make decisions," he added.
Du Plessis also called for former players to be involved with the national team.
"It's obvious that we need to make more use of ex-players but it also comes with challenges," he said.
"I suppose it always comes down to finance. I know for a fact that we have tried to get them involved but the financial thing is a hurdle. We need experience in the team right now and that comes from ex-players." - 'Copy and paste' Tests -
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"It was obvious from the way we played the last Test match. We started really well but by being put under pressure for a long period of time through the series, slowly but surely we started playing worse."