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."
Villarreal visit bottom club Xerez in their next outing, and then have home advantage for consecutive matches against 18th-placed Malaga and promoted Tenerife.
"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."
Villarreal were booed off the pitch at the Madrigal on Sunday after being held to a 0-0 draw by Espanyol, who had played 75 minutes with 10 men.
The east-coast club finished fifth last season before Manuel Pellegrini ended his five-year spell as coach to take the helm at Real Madrid.
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.
