Tony Mowbray was left angry after defensive mishaps resulted in Rovers suffering a narrow defeat against Rotherham United at the New York Stadium.
A Semi Ajayi brace inbetween a Ben Wiles tap in earned all three points for the Millers, with the Rovers goals coming from Amari'i Bell and a late Charlie Mulgrew penalty.
And the boss was left highly critical of his side's defensive display against Paul Warne's side following the defeat in south Yorkshire.
“We have an inability to defend properly, an ability to keep clean sheets, an inability to head the ball out of our box," the boss admitted after the encounter.
“I don’t want to go too deep, but to lose the goal we lost inside the first minute, after all the training we’ve done [on that scenario] this week, you wouldn’t believe it.
“You can protect your footballers sometimes and skirt round the edges, but I can’t do that today.
“We have to defend, we have to head the ball. The one player who likes heading the ball in our team is unavailable at the moment.
“My job is to go out and get some players who have that. There are days where we have to go to war, put our head on a stick and head the ball.
“We had chances to win the game, but a long throw into the box ends up in our net, a cross into our box ends up in our net, and the goalkeeper, he’s practically in the net rather than coming to catch the ball for the second goal.
“It’s the basics we are getting wrong. They understand the problems, the players aren’t self-protective. We’ve had a vociferous dressing room after the game."