The Rams picked up their first win of the season away at Preston on Tuesday night.
The Rams recorded their first victory of the season during the week, defeating Preston North End 1-0 at Deepdale, thanks to a late winner from Craig Forsyth.
The game looked set to fizzle out into another stalemate for Derby until Will Hughes floated in a fine delivery that was met by the onrushing Forsyth, who powered home the winner with just three minutes of normal time remaining.
Craig Forsyth scored the winner on Tuesday night
And Pearson said that he would be reluctant to alter what was seemingly a winning formula.
He said, via the Derby Telegraph: "Players have a much better chance of retaining their place in the side if they play well and win.
"I'm not ruling out changes but I was pretty pleased with how we went about the last game. I'm not a massive one for making changes to rotate the squad.
"There will be times when you need to do it but, for the most part, if you get a settled side, it's good to go down that route."
Derby County manager Nigel Pearson
Pearson used only a small number of players when he guided Leicester City to promotion in 2014 - just 22, in fact - and that was earmarked as a key reason for the Foxes success, notably for fostering excellent team spirit, something that has since helped to inspire the East Midlands club to go on to claim the Premier League title.
Villa will be a different prospect to Preston when they visit the iPro on Saturday, and they will be looking to push on from their 1-1 home draw with Huddersfield during the week, one that saw the Villans denied all three points by a late strike by Michael Hefele, helped entirely by a disastrous mistake from Villa stopper Pierluigi Gollini.
Aston Villa's Pierluigi Gollini looks dejected after Huddersfield's goal
The Italian fired the ball straight at Hefele, sending it careering back past the keeper and into the empty Villa net.