"It's really important the spirit and strength of the squad because we know we have a lot of quality in this team," said the Dutchman.
"Xabi has been one of our key players this season but he couldn't play and you saw Lucas coming in and he played a good game.
"I thought it was a great performance and it's always more easy when you score an early goal.
"It was another great performance from Stevie and we can be very happy with the result.
"We know our target, which is just to win our games and then let's see what happens."