Speaking to French news channel BFMTV, Deschamps suggested he had to balance a desire for glory in Brazil this June with long-term success.
"I'm also projecting myself to what we can expect at Euro 2016," he said.
France qualify automatically as hosts of Euro 2016.
Deschamps, who will name a preliminary 30-man squad for the World Cup on May 13, said he wanted to emphasise team spirit when making his selection.
Asked if he could omit a player in order to preserve the squad's unity, Deschamps replied: "Yes, it is possible, there is a balance (to respect)."
He added: "I'm not France coach to take the 23 best players but to form a group who will go as far as possible."
France have been undermined by off-field problems in recent tournaments.
Two years later, Samir Nasri was involved in a foul-mouthed rant at a reporter after Les Bleus were eliminated by Spain in the quarter-finals.
Manchester City midfielder Nasri has been left out of the squad for France's last two matches, against Ukraine in a World Cup playoff and against the Netherlands in a friendly.
They start their World Cup campaign on June 15 against Honduras in Group E, which also features Switzerland and Ecuador.