"Obviously we are not satisfied, but we know what we have to do and what we did against Dortmund," said Benitez.
"We need to bring out that same character and intensity I saw in Dortmund. After the defeat to Arsenal, I knew we had to play better, but I thought our reaction with Borussia was very positive.
"I spoke to President Aurelio De Laurentiis this morning and when he brought me here it was to help the club grow. That includes improving the infrastructure to attract top level players and ensure they stay here.
"Now we must seek players not just for this season, but for many years to come. We must continue working within this vision. The team needs a certain mentality and to be more confident in its capabilities."
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