Manchester City did not anticipate the meteoric rise of Cole Palmer, who has become the best player in the Premier League since leaving for Chelsea.
That is the view of former City defender and manager Stuart Pearce, who believes Palmer's form could even lead to Phil Foden or Jude Bellingham being omitted from the England team.
Palmer left City for Chelsea in a £40million deal last year after struggling for regular minutes at the Etihad Stadium, and he has wasted no time in establishing himself as the Blues' star man.
He has 44 direct goal involvements (28 goals, 16 assists) in the Premier League for Chelsea, more than any other player has managed since the start of last season.
He became the first player to score four goals in the first half of a Premier League game against Brighton and Hove Albion last month, and only City striker Erling Haaland (10) has bettered his tally of six top-flight goals this term.
While Pep Guardiola has said Palmer's sale was not a mistake, citing the fierce competition for places at City, Pearce believes his form will have surprised his former club.
"I watched Cole Palmer in the last internationals and he's so aware, before he gets the ball, of what is around him and he just manipulates that ball brilliantly as challenges come in," Pearce told Stats Perform.
"Now for what he's done, I don't think Manchester City envisaged how well he was going to do when he left the football club.
"With Cole Palmer, it will be difficult to turn around and say he's not the best player in the Premier League at this moment in time, or certainly last season.
"His goals tally and his assists tally are there for all to see. He's quite incredible. With his understanding of where to be on a football pitch, you almost want him to be the central figure."
Palmer has also made an impact on the international stage, coming off the bench to score for England in their 2-1 defeat to Spain in the Euro 2024 final in July.
Lee Carsley, who remains in interim charge of England until Thomas Tuchel takes the reins in January, has fielded Palmer from the right wing, but Pearce thinks he must be allowed positional freedom to show his best form.
"Last game [a 3-1 Nations League win in Finland] he played wide on the right, I think his instructions were to stay on the right because [Jack] Grealish comes off the flank a little bit more," Pearce said.
"It's about where best to play Cole Palmer to get the best out of him. I think it's tucked inside, inside right, number 10, wherever.
"It's about getting that balance right and you might have to leave Foden or Bellingham out to accommodate him on any given day. Now that is a tough call for any manager, but he's been incredible for Chelsea."