Sebastian Coe has vowed to guide the IAAF "back to trust" after a series of corruption and doping scandals that has seen global athletics crash into its darkest ever days.
Speaking after an IAAF Council meeting on Thursday, Coe stepped down from his lucrative ambassadorial role for Nike over what some people dubbed as a conflict of interest, notably over the award of the 2021 world championships to Eugene, located in the same Oregan state as the giant US sportswear company.
"The journey back to trust is not a scientific one, there's is no certainty in this," said Coe.
"But it does have to start with making sure that we have an organisation that is fit for purpose and can deliver the services that it needs to, and can maintain and rebuild the reputation that clearly has been hit very hard in the last few weeks."
Coe's alleged conflict of interest to one side, his predecessor lamine Diack is under French police investigation for allegedly having accepted more than one million euros in bribes to allow athletes compete despite them having tested positive for banned substances.
In the wake of those shocking revelations, the IAAF then acted on a bombshell report by an independent commission of the World Anti-Doping Agency (WADA) by banning Russia from all international competition because of what it called systematic state-sponsored doping of its athletes.
Coe has the support of the IAAF Council, the 26-strong body that governs world track and field.