Napoli boss Rafa Benitez was delighted with their 1-0 friendly win over Barcelona.
Blerim Dzemaili scored the winning goal against Barcelona, but is expected to leave Napoli for Milan this summer.
"All of our players are talented. The issue is we need to find players on the market who are able to further improve an already strong squad.
"It is not easy to face a great side like Barcelona, but we had the right approach. We have the players back from the World Cup and it became immediately obvious we became more dangerous with them in the side. These are quality players and they proved it straight away.
"Gonzalo Higuain seemed a little tired to me, so I preferred not to risk him. He'll be ready for the Champions League play-off, though I'm not sure if it'll be from the start."
