Paco Herrera has refused to blame Gustavo Cabral's red card for his side's loss, whilst Paco Jemez claimed he always had confidence in his side.
The Argentina defender was dismissed with his side 2-0 up in the capital, but the former Liverpool assistant does not put any blame on the 27-year-old for the eventual loss.
“In the second half we did not play well,” he told a Press conference. “Even with a man down there's no excuse for the way we defended.
“It is true that it is more difficult to play with 10-men, but we were bad. We should have been more offensive, but because we had a man sent off, we sat back.
“I think the sending off is a bad decision, personally,” he added. “We are not having any luck with the decisions lately.”
Jemez meanwhile praised his side for their attitude, having scored three second half goals to win the game.
“We made a lot of mistakes, but that's all part of football,” he told the club's official website. “Things did not go well for us at the start.
“But the good thing about this team is their competitiveness – everyone worked hard to win this game.
“I was always confident that we'd come back and get the win, but we still have a lot of work ahead of us if we're to achieve our goals this season.”
Cabral sent off 39 (Celta Vigo)