Manchester City assistant manager Brian Kidd has pleaded for patience as the Premier League's big spenders try to find their feet.[LNB] City head into tonight's Europa League encounter with Red Bull Salzburg after collecting just a single point from their last two domestic games.[LNB]Outside the club, questions are starting to be asked about some of Roberto Mancini's decisions, notably to omit Roque Santa Cruz from his 25-man European squad which leaves him with just two fit strikers in Austria, one of whom, Brazilian Jo, has generally been viewed as a misfit since his £18million move from CSKA Moscow two years ago.[LNB]Kidd accepts such pressures come with the territory given the vast scope of what City are trying to achieve.[LNB]But he also feels Mancini needs to be given time to put his ideas into action.[LNB]"From the club itself there has to be patience," he said. "The boss has only been here a short period and this is a building job. It is going to take time.[LNB]"Unfortunately some of the players the boss has bought have not been available. They will enhance the team and the club itself when they are fit."[LNB]Jerome Boateng, Emmanuel Adebayor, Mario Balotelli and Joleon Lescott are amongst those who will be missing this evening.[LNB]Spain international David Silva is expected to be given a starting slot though, eager to make up for lost time after a slow start to life in England.[LNB]Although his move from Valencia was announced early in the summer, the 24-year-old actually came to City very late following Spain's World Cup triumph.[LNB]Silva has looked a dejected figure on the bench at times this season and there have even been cheeky claims from Spain he could be on his way home during the January transfer window.[LNB]However, as City continue a run of seven games in three weeks, Mancini feels Silva can now start to make an impression.[LNB]"The problem for Silva was that he never worked with us," said Mancini.[LNB]"He was with us for two days in pre-season then he went to the national team, then he came back, then off to the national team again.[LNB]"But he is a fantastic player, with good technique.[LNB]"However, every player who comes to the Premier League has problems for a couple of months.[LNB]"When he plays another few games everything will be normal."