PEDRO Caixinha spoke to RangersTV after his side were knocked out of the Betfred Cup at the semi-final stages by Motherwell.
He said: “My main feeling is of disappointment, we could not cope with the high expectation that came from the match.
“It was a poor, disaster performance from the team, something nobody was expecting, even less myself.
“I need to say I am very sad, disappointed and I assume all the responsibility for what happened here today.
“It is up to myself to manage those expectation and maybe I am the one who could not focus on the right direction.
“They are a fantastic group of players and we have lost a semi-final, all of us wanting to be fighting for this trophy in the final at the end of November.
“That was not possible and it is not because of one game that I am going to say I don’t trust or have confidence in this group.
“When you understand and know the opponent is going to play one way and you let them play that way and you don’t play your way then that means things are not going in the right direction.
“We work and train in that direction in order to have our own identity but I cannot remember out of the one4 players who went on the pitch if I saw one who kept his level.
“If not even one could keep his level along the 90 minutes then that means it was really a poor performance individually and collectively.
“There are things that we need to understand and talk about but the players will know that directly from me.
“The way to combat their physicality was playing our own way, have the ball, make them run after the ball and not get in so many duels.
“What we saw here today was much more than physicality, we saw aggression and something that is not allowed. It is the way football, especially here is played and we need to be ready for it.”
Caixinha was sent to the stands by referee Steven McLean with 20 minutes left to play after Fabio Cardoso broke his nose under a challenge from Ryan Bowman.
He continued: “The question was not with the referee, the question was when I saw Fabio’s nose. From the touchline I couldn’t see what happened.
“Now I have seen it was an elbow but after when I saw his face and nose I just asked the fourth official “What needs to happen on the pitch for an opponent to receive a red card?””
Rangers now return to League action on Wednesday evening against Kilmarnock at Ibrox.
Caixinha said: “These next two days are going to be very important for us and I am glad we play on Wednesday and not on Saturday.
“It is time for us to show a different face, especially compared to the one we showed here today.”