Manchester United manager David Moyes has admitted that he needs to sign players who will immediately improve his team, as well as warning that last Sunday's derby demolition may not be a one-off.
City were thrashed 4-1 by Manchester City at the weekend and Moyes is ready to "take a few blows" during his first season in charge at Old Trafford.
And the United boss, who says he never expected taking charge of the reigning Premier League champions to be easy, wants to sign world-class players who can "go right into the team".
"It’s important that I took the punches," said Moyes, who officially took charge of United on July 1st following Sir Alex Ferguson's decision to retire at the end of last season.
"Not for a minute did I think this job was going to be easy.
"There will be days like we had on Sunday and there might be more of them because we are in a period where there will be transition - there’s a new manager for the players, and in turn there will be new players at different times - so obviously that will happen."
This week it has emerged that Moyes asked Fabio Capello for his advice on Daniele De Rossi, who was a summer transfer target, while Real Madrid have claimed United were preparing to table a bid for Gareth Bale before the Welsh winger moved to Spain.
Barcelona midfielder Andres Iniesta has in recent days also been linked with the Red Devils, and Moyes continued: "I don’t think it’s actually the squad [that is short], we’ve got numbers. Maybe where we’ve got work to do is bring players in not for the squad but to go right into the team, so that’s the slightly different equation.
"It’s not necessarily the squad players we needed, we needed one or two who might have just gone in [to the team], but that will happen."
United failed with deadline day bids for left-backs Leighton Baines and Fabio Coentrao, and also missed out on Thiago Alcantara, who opted to join Bayern Munich. Bids for at least two other midfielders - Cesc Fabregas and Ander Herrera - also failed to materialise.
Moyes is expected to make fresh moves for a midfielder and a left-back in January, and said of his pursuit of players during the summer: "Going back to that transfer window, we always said it was going to be a tough one and it was going to take a little bit more time.
"Yes, it does mean I may have to take a few more blows, definitely - maybe even more than that. Maybe all season I knew this was going to be the case because I was taking over from a great manager and it was always going to take time for me to get my own ways and change things round a little bit."