According to various reports in the last few days, Vanderlei Luxemburgo and Peter Reid have turned down the job.
"Everything has been clarified from a sporting point of view, but a final agreement has not been reached yet," Schaefer said according to IranSportsPress.
The Iranian Football Federation (IFF) will elect a new head on December 6.
"As soon as the new president is elected and confirmed all further details will be clarified," Schafer added.