"They should know that they've got a difficult situation, because Barca is a difficult club and there's an adverse financial situation too -- it won't be easy at all," Xavi told DAZN.
Barcelona sacked coach Xavi Hernandez on Friday after the Catalan giants failed to win a trophy this season but just weeks since he and club president Joan Laporta agreed he would stay in the post.
Young Barcelona midfielder Fermin Lopez struck twice to secure his team a hard-fought 2-0 win at Almeria on Thursday in La Liga.
Carlo Ancelotti's side romped clear of last season's winners and shock challengers Girona to clinch their record-extending 36th La Liga trophy
The last chance saloon has opened its doors early for Barcelona as they travel to the capital on Sunday aiming to hold off Real Madrid's LaLiga title run in a desperate effort to stay alive in the race for the only remaining major silverware they can win.
Barcelona woke up with a familiar sinking feeling on Wednesday, another Champions League hangover, after Paris Saint-Germain thrashed them 4-1 at home to eliminate them in the quarter-finals.
“He [Xavi] is doing very well. He expressed himself in the sense in which he expressed himself, I understand that everything is open and everything is revisable,” Laporta said.
Xavi has insisted there has been no change to his decision to leave Barcelona at the end of the season.
Champions Barcelona are determined not to let their crammed schedule get in the way of their bid to win back-to-back LaLiga titles even though they are third in the standings, coach Xavi Hernandez said ahead of Saturday's clash against Getafe.
Barcelona start the defence of their La Liga title Athletic Bilbao while Real Madrid kick-off the new season against Sporting Gijon.