Villarreal are 19th in the 20-team league with three points from a possible 18, and are still seeking their first win of the campaign.
"These 15 days will be good for us to disconnect from the situation a little, and to prepare for the upcoming games. For me, these will be crucial," the former Arsenal player, 35, told a news conference.
"We need to wait a little and draw some conclusions after the Tenerife game."
"It's an unfamiliar situation for us and difficult to understand, but we can't let heads drop because we have the quality to get out of this," he added.
"It's at times like these when doubts arise, and you lose quality and confidence, so I hope it doesn't continue much longer for the good of the club."
His replacement Ernesto Valverde was given the backing of club president Fernando Roig after Sunday's game.
"The president came down (to the dressing room) to call for calm and this is very important for the team because it helps... to know everyone is with us," Spain international Santi Cazorla said.
