Two of the staff that were involved in the summer recruitment have been fired.
George Syrianos and Andy Scott are no longer at the City Ground.
It is believed owner Evangelos Marinakis was involved in the decisions that led to their exits.
It took Forest 23 years to get back into the premier league.
Forest needed a significant influx of players following their promotion as Championship play-off winners due to out-of-contract and loan players leaving.
The quality of the additions is being questioned.
After nine games, Forest have five points and two victories.
Only the Wolves have scored less than their seven goals and only the Foxes have given up more than their 22.
Steve Cooper signed a new five-year contract on October 7th despite the club sitting bottom after eight games.
The decision was made that he would remain in charge despite the loss.
The club's return to the top flight is seen as an attempt by the new sporting director to guide them.