Los Che made it to the semi-finals of the Europa League this season, but a disappointing domestic campaign has seen them finish eighth in La Liga.
"The players have taken the news about Lim's arrival well," Pizzi told reporters at a press conference.
"I think the majority of them are pleased with the decision. There is no chance that we will not improve next season from what we have done this season.
"But the margins are very small and the target for next season will be to make a great start and try to compete with the Big Three of Spanish football. In order to do that, we have to have a lot of belief we can achieve it."
Valencia are expected to be extremely active in the transfer market this summer.