Despite Nuno’s latest comments, it seems clear there is considerable friction behind the scenes at the City Ground.
If Forest continue to win games, then sacking him becomes that much tougher.
But can Nuno really expect to come out on top in a dispute with the owner and head of football?
“This is a battle that Nuno will lose,” European football expert Julien Laurens told BBC Radio 5 Live.
“We all know that once you start questioning your owner, it’s done. For him to come out with this unprompted, he offered it to the whole world, he knows that it is coming and that he can’t win this battle.
“We also know that him and Edu don’t get on. He was already there when Edu arrived at the club, and we all know when a new sporting director arrives, they like to come with their own people.”
Former Manchester City defender Nedum Onuoha said Nuno may consider resigning now that the relationship was “broken”.
“Nuno’s stock is so high with the fanbase, they will want to fully believe in him,” he told BBC Radio 5 Live.
“But it is also so awkward for them because they will be grateful for what the owner has done for the club in the last few years.
“With Edu coming into the club in such an important position, he will want his own people in play, because they will never really fully trust the person that is already in play? If he could pick a manager now, would he pick Nuno? No.
“That will be nagging for as long as possible, but Marinakis and Edu won’t be rooting for him to fail so they can make the change.
“But the relationship is broken and I would not be surprised if Nuno walks before he is sacked.”