De Fanti and Poyet's predecessor Paolo Di Canio conducted a startling amount of business in the summer transfer window, completing no fewer than 14 new signings.
But Poyet is unhappy with the squad he inherited and has presented a detailed analysis of the players to De Fanti, who he met with last week to discuss their plan of attack when the window re-opens on New Year's Day.
Poyet said: "We had a very good meeting at the end of last week. Everything is rolling, we can say.
"We analysed my report on the players we have got here and what I think is needed. We have seen a few players, depending on what is needed. I am trying to be smart and not give too much away, but it is not easy.
"I liked a few, I didn't like others. We set up targets and we want to increase the viewing and the contact with the players and the clubs as well.
"The idea is to start moving. The sooner we move, the better for me because the sooner you get a player, the better.
"Quantity - it's not going to be many, but a number I cannot tell you because it's impossible."
Di Canio was sacked just two games after the summer window closed with the club rock-bottom of the Premier League, having claimed only a single point from eight games.
The Italian has since blamed the Sunderland board and De Fanti for the huge influx of players, claiming that many of the new arrivals were not ones he wanted.
However, Poyet insists he has no qualms about working with a director of football, adding: "Why do you think they talk, because it exists everywhere in the world? For me, it's not new, it's everywhere.
"Here, you are not used to it, fine. It depends who you are and how you manage it. Me, so far, I have no problems.
"I am used to that. I have seen it during my seven years in Spain, I have seen at Spurs when I was a coach and I have seen it here, so it's no different.
"The connection and the communication have been great. Now the best way for everything is to wait until the transfer window and see what we do and how we do it, and then you analyse.
"If it's good, fine, and if not you need to sort it out. But right now it's been normal, I would say. Normal is good, yes?"
But when asked who would have the final responsibility for future signings, Poyet admitted the situation was not straightforward.
He said: "If you ask me now which player would we like to have, well after this week, [Cristiano] Ronaldo. Can we have him? No.
"That means I don't have the final say. It's stupid saying that, so then you need to say, 'Okay, if it's not Ronaldo, who is next? Who do you want?' and then you go for a number of positions and players.
"Then at the end of the day you have to agree, it's a simple as that."