Michael Beale has admitted he completely understands the frustrated response from Rangers fans after defeat to Celtic.
Boos could be heard at Ibrox at full-time after the 1-0 loss to Celtic with Kyogo Furuhashi's strike the only goal.
And Beale admitted it has been a "rough week" for the club capped by a "desperately disappointing" Sunday.
On the fan fury at full-time, Beale told BBC Scotland: "I completely understand it [the fans' reaction at full-time].
"There is a lot of weight in the shirt and being involved at this club. The expectations are high, we want the expectations to be high.
"The fans today stuck by their team for a long, long time in the game and pushed them, and it's natural that if you don't get a result in the derby for the fans show some frustration."
He added: "It's been a rough week. Today, I thought the performance merited more in the game.
"I thought we started the game quite well - obviously we score an offside goal, and then the VAR call. I think having looked at it back, he kicks Cyriel, so I think it's a harsh call. I think that's one that's gone against us, but there's a lot of time to play in the game.
"The goal is an error on our part, a huge error, and second half, we pushed and pushed, but you'd like us to be more inventive and ruthless, because the chances were there. It's a desperately disappointing day for everybody. We're behind them, and we have a lot of catching up to do.
