The Tottenham striker admits England have to improve as they prepare for Friday's clash with Algeria though coach Capello has told his players it is not all doom and gloom.
Crouch, who appeared as a second-half substitute, said: "The manager knows we can do better. He told us he saw things in the first game that were encouraging and he has taken them and told us we should still believe in ourselves and what we are doing.
"Those are the things we need to take into the next game. Obviously we can improve and we know that but there were those encouraging signs as well.
"When we scored the early goal, we thought we'd go on but it wasn't to be. A lot of the first games in groups don't quite live up to expectations. It's often the way. Hopefully we will go on and do a lot better from now on.
"But we didn't lose the game, like a lot of people seem to be making out and we've got to go forward with confidence."
Crouch is hoping to have a bigger role in the tournament but is adamant Capello's style of naming the team only two hours before kick-off is not an issue with the players.
"At Liverpool, Rafael Benitez picked the team just before we got on the coach and we seemed to perform well.
"We could've guessed pretty much most of the team from training. Some players like to know earlier but others don't mind.
"Every one of us knows the job we have to do if we come into the team. If Emile Heskey is playing, I know I'll probably come on for him and Jermain Defoe will come on for Rooney."