Blackburn's fringe players have been told they will get an opportunity to impress in the Carling Cup.
Rovers slumped to a disappointing 3-0 defeat at Everton on Sunday and manager Sam Allardyce was critical of the performance after the final whistle, saying many players had 'put their places in jeopardy'.
He is set to make wholesale changes for the game against Nottingham Forest on Tuesday and assistant boss Neil McDonald has urged those involved at the City Ground to seize their chance.
"The manager made some changes for the first (Carling Cup) game against Gillingham and with the squad we have and with everyone fit it is a good time to try to give everyone else a game," said McDonald.
"With the team not doing too well in the Premier League at the moment it gives everyone a chance to stake a claim.
"I'm sure it will give everyone the chance to impress the manager and give him a problem for Saturday.
"If they play well they have one hell of a chance to face Aston Villa."
McDonald insists it is still important for Blackburn to beat Forest to help them recover from the loss to Everton.
"The manner of the defeat was most unlike us, conceding goals from set-plays, and so we are smarting," he added.
"We reviewed the video to see what we did well - which wasn't that much - but we have to make sure we don't do it again.
"We have to remain positive. We have to leave that game behind, look forward and do the good things.
"We are always looking to improve and see where we have done things wrong and put them right and make sure the next time we play we don't repeat them.
"Villa is the most important game because that is our bread and butter but we have to get back on track starting against Forest tomorrow.
"All the players want to play in these games but it is the manager's judgement on who he is going to change and who he is going to play."