Dr Helmut Marko has pointed a finger at the Formula 1 rules amid the tension at Red Bull's junior team.
Toro Rosso teen sensation Max Verstappen lost his cool with the Faenza team and teammate Carlos Sainz in Melbourne, after getting stuck behind the sister car.
Dutchman Verstappen's race went wrong amid communication misunderstandings with Toro Rosso and a pitstop in which his tyres were not ready.
"Everyone must ensure that such a thing does not happen again," Austrian Marko, a key official for Red Bull's F1 programmes, told Austrian broadcaster Servus TV.
"In defense of the team, it must be said that the radio rules were changed three times over the course of the weekend.".
As for Verstappen's foul-mouthed bad mood, Marko said the 18-year-old is "young, madly ambitious and emotional" but insisted that the situation would be "clarified internally".
