Tony Mowbray says his team needs to show more resilience when defending as a unit following a disappointing defeat at Sheffield United.
Rovers were in complete control at Bramall Lane after Chris Basham was shown a second yellow card for the hosts early in the second half.
But after Richie Smallwood was shown a straight red for a challenge on Billy Sharp, the tide turned, with Sharp bagging a brace before David McGoldrick added gloss to the scoreline later on.
And Mowbray says it's time to get back to the basics of defending ahead of West Bromwich Albion's visit to Ewood Park on New Year's Day.
“It was the right team to play to day, and for long spells the players proved that to me," the boss said when analysing the defeat. "Two senior lads came on and we lost the goals after that.
“The defence kind of crumbled after we conceded the first goal, and that simply cannot happen. We need to show more resilience. When we do concede a goal we need to make sure we don't concede any more.
“The players know what's expected. The personnel may change but the way we play doesn't. You may have to tinker depending on an opponent's formation.
“We'll have a day to assess the Sheffield United game and then we'll have a day preparing for West Brom's visit.
“If we defend as we did in the last 15 minutes or so then the Dog and Duck down the road will score against us, never mind West Brom.”