Sergio Aguero, Edin Dzeko, and Mario Balotelli have scored 39 Premier League goals between them this season and each scored yesterday in a comfortable 3-0 home victory over Blackburn.
"I don't think we have ever had all three on the pitch at the same time, so there has always been competition," Platt told reporters.
"Now that Carlos is back, he'll add another number to the equation. When we've got everyone fit and available, we are going to have people sitting in the stand who could get into most teams in the Premier League."
City are due to play Bolton next weekend at Eastlands before a midweek trip to Sporting Lisbon in the Europa League.
And Platt revealed that the Argentine striker could come into contention for the home game against Swansea on March 10 but gave no guarantees.
He added: "Carlos is back and he’s training. The manager has said he could be ready for the Swansea game in a fortnight, but it could be a little longer than that.
"It is a bit like a pre-season for him at the moment. He’s a had period of time off, but he needs some conditioning and he needs to get ready for playing football again.
"He’s joining in the sessions and he does a little bit of work afterwards. He’s got his head down and that’s what he’s doing.
"But we need to find some 11 v 11 football for him. We will do that to get him into a condition where he’s available for selection if the manager wants to pick him, but that whole process takes a lot longer than 24 hours."
Roberto Mancini may yet choose to omit the striker even when he regains match fitness.
Although Tevez has apologised for his conduct surrounding his alleged refusal to appear as a substitute against Bayern Munich in the Champions League group stage, the Italian manager had earlier implied he would not appear for City again.
Platt believes that rebuilding relations with the fans is a task to undertake on his return, adding: "I don’t know how the fans will react to him. I think we and Carlos have to cross that bridge when we come to it.
"But he can’t do more that he’s already done. He’s apologised and that apology has been accepted and we’re getting on with things for the good of Manchester City."
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