The Owls are currently sixth in the Championship, but are without a win in their last three games.
The Owls have been contenders for the play-off places in the Championship for most of the campaign, but are currently enduring a run of three games without a win. Nevertheless, Carvalhal insisted that he plans to continue tinkering with the side.
"I understand that everybody wants to see all the same players but we know the players," he told the Star.
"We work with them every single day and know who can recover and play.
"We have got options. If we have a player who is playing well and is in a better condition than someone else, we will play him."
The Star reports that Wednesday have made more changes to their starting line-up than any other side in the division this term. And that strategy appears to have been a crucial factor behind the club remaining one of the key protagonists in the promotion race.
However, their recent run has perhaps put Carvalhal's policy under the microscope. While the goalless draw away to automatic-promotion chasers Hull City is certainly a good result, they would have undoubtedly been expecting to beat Preston and Queens Park Rangers in the previous two encounters.
The fact that they have collected just two points from a possible nine in their last three games may allow some to argue that the Portuguese is preventing some of the players from building any momentum as the teammates they are creating an understanding with could be left out in the next game.
However, the success the tactic had before the most recent three games shows that keeping players fresh can aid a side's chances of promotion enormously, and with the other teams beginning to tire as the season wears on, Carvalhal will be hoping that his squad are able to use their improved fitness levels to propel themselves even further up the table.