Michel admits if they're to win they must stick to their system.
He said, "We are doing well and I am happy with the performance of the entire team. It is a good time to go to the Barça field since for a humble club like us, facing the Blaugrana while at the top is good.
"That doesn't bring us closer to victory, on the contrary, since Barça is in our league but not a rival with the same objectives as us.
"Except against two rivals, Barça has beaten all the teams in the expected goals section. That means that it reaches the rival goal a lot, but so do we. If we are able to make Barça run backwards it will be good.
"They will put pressure on us and on our man to make our first and second passes impossible, so we have to be able to make the ball last and suffer when we don't have it."
He added, "The possibility of winning is in my head but few rivals will go to Barça's field thinking that they can do it or that they are favourites. We are not at the level of Barça in any aspect and if we think about playing normally, we are wrong.
"We must be clear that we will suffer because otherwise it will be impossible. It won't be possible to implement our idea from beginning to end, but it will have to be done in moments."