Barcelona technical director Roberto Fernandez is unsure about signing Juventus striker Paulo Dybala.
PSG midfielder Marco Verratti is also a Barca target.
"It's not easy to improve this team because we are already at a very high level," the technical director told Mundo Deportivo.
"We always try to improve it, we are attentive to what is happening on the market.
"There are many voices right now, but Verratti and Dybala are two players who have long contracts with their respective teams. It is very complicated to get them here.
"The Coach issue is important, but we'll think about the decision and notify you when it is convenient to do so."
Source: tribalfootball.com