Former Manchester City chairman and player Francis Lee feels the owners need to spend even more money on some "knockout drops" if they are to win the Premier League.
Lee feels defeat by Manchester United on Saturday means that City have no chance now of winning the title this season, and he believes the £400 million spent so far by owner Sheikh Mansour was not enough.
Lee told BBC Radio 5 Live: "I don't think you can win the Premier League with this team - you need a couple of more knockout drops.
"Tevez is a wonderful striker but he just hasn't got that support up front. We just don't have that real cutting edge that can dominate games. We can pass it intricately but we just don't have that knockout drop and if Tevez doesn't do it we are struggling a bit.
"Dzeko needs time to settle in because it's patently obvious he had not adjusted to the speed of the Premier League. He should be a very good player [eventually] but if Tevez gets injured you need someone who can really stick it away and they are very difficult to find.
"I think there's a dearth of very, very high-class players - you are buying a lot of top-class average."
Asked if City boss Roberto Mancini will bring in new players in the summer, Lee added: "I would think so - he may have to get rid of one or two people but he needs a wide option too."
Wayne Rooney's stunning overhead kick won the game for United and Lee believes that has guaranteed the title going to Old Trafford.
He said: "Certainly, yes. I think it rules everybody else out of winning the league. I thought City had to win to give the rest of the teams a chance - Chelsea and Arsenal too - it was a real big win for them.
"It was a wonderful goal by Rooney. It just shows that old adage that form is temporary and class is permanent. He was having a wretched afternoon and everything was going wrong for him and up he pops with a stunner."