Theo Walcott and Richarlison have both had decent starts to the season, scoring five goals in 14 appearances in all competitions between them and Silva is content to stick by the duo.
It means new signing Bernard, brought to the club on a free transfer after leaving Shakhtar Donetsk, and Ademola Lookman, who returned from a successful loan spell in the Bundesliga with RB Leipzig, have had to be content with being on the bench for the majority of the campaign.
And Silva has hinted that the situation will not change unless he alters the formation, saying Walcott and Richarlison bring more pace to the side.
Both Bernard and Lookman made starts in Everton's midweek Carabao Cup exit to Southampton as they were dumped out on penalties.
Both impressed in patches and Silva said: "When I took the decision to start with Bernard and Lookman it was because I believed they will perform in this way."
But he added: "They are different from Richarlison and Theo. Richarlison and Theo are faster players while Bernard and Lookman they play more between the lines.
"They like to keep possession but they performed well It was an important moment to give these minutes to them. They showed what they can do."