Tony Mowbray was left "embarrassed: by his side's sloppy defending as Rovers suffered more frustration on the road.
Sheffield Wednesday ran out comprehensive 4-2 winners at Hillsborough as Rovers endured the same old defensive woes on their travels.
Each goal was a soft one to give away, with a positive of the day being a debut for John Buckley, who was one of five Academy graduates on the pitch at full time.
“Our inability to defend crosses is what has cost us today," the boss reflected to iFollow Rovers.
"When you are trying to match players up in terms of the marking, it was pretty embarrassing today.
“We had 5’8' players against 6’6’ players. That was how things panned out, although we were on top for the majority of the game, after conceding a ridiculous opening goal.
“I don’t want to go into it but the first goal was embarrassing today. We have to sort it out and we will do."
But the international break could come at the perfect time for Mowbray, with a trio of centre halves likely to be back in contention when Rovers head to Aston Villa on Saturday 30th March.
“We have men coming back in the form of [Charlie] Mulgrew, [Darragh] Lenihan and [Jack] Rodwell, but I also thought [Tyler] Magloire applied himself very well again today.
“The result looks a bad one, but on the balance of play, there was some good play and control.
“But if every time an opponent gets a free kick and it gets headed into our net, it doesn’t matter how much of the ball you have."