The City boss endured a frustrating January transfer window when, instead of actually bolstering his squad, he saw it weakened by the sale of Mario Balotelli to AC Milan on deadline day last Thursday.
It appears Mancini was in no desperate need to reinforce his squad last month given that they now only have the FA Cup and Premier League title to chase in the second half of the season following their European elimination.
And, with rivals Manchester United nine points clear at the top of the table, the chances are Mancini will be going into the summer looking to build a side capable of claiming back the title from the Red Devils in 2013-14 and also enjoying a sustained run in the Champions League.
As a result the Italian confirmed he is on the look-out for players, with Atletico Madrid striker Radamel Falcao, Real Madrid star Cristiano Ronaldo and Napoli's Edinson Cavani all being linked.
Mancini told Sky Sports: "It's difficult in January to find really good players for us.
"Clubs don't want to sell now, but maybe they will in the summer. We need to work now, so that it is not like last year."
He added: "Last year we didn't work well. It's important we start now. Now's the time we can close in on some good players for the summer.
"I have meetings with Txiki (Begiristain) every week and we talk about the summer.
"It will be easier to get players in the summer if we work hard, well and quickly now.
"You can't start looking at players in May because all the good ones are gone and it becomes impossible."