The La Liga champions have made their worst start to a campaign since 1994-95, sitting eighth in the table, after their 2-0 defeat at leaders, Granada, on Saturday.
The situation has put manager, Enersto Valverde, under serious pressure.
Xavi has won his first three matches as manager of Al-Sadd in Qatar, reaching the semi-finals of the Asian Champions League.
His progress has prompted speculation he could replace Valverde at the Catalan club.
The 39-year-old noted that his close relationship with his former teammates, Lionel Messi, Luis Suarez, Gerard Pique and others would enable him do well if given the job at Nou Camp
“I don’t know if it will be a bridge to Barca,” Xavi told Spanish outlet, Ara.
“The only thing that worries me now is doing well here, winning titles and making mistakes in some aspects to learn for the future.
“It wouldn’t be a problem (to manage former team-mates). I know what Leo is like, and Luis (Suarez), Sergio Busquets, Jordi (Alba), (Gerard) Pique or Sergi (Roberto).
“I know how they train, their capacity for leadership, I can tell if they are sad or angry. I hope as a coach I could have three, five, eight or 10 players that I already knew and that I already had a good relationship with.
“(Messi) is a player who, if you convince him, he can even be a brilliant defender. He has physical and mental speed. He has everything. If you convince him to run, what will the others do? They will run twice as much.
“The problem in the midfield is that nobody is doing any defensive work, so they suffer when they have to retreat.
“The coach is very important, but without the players there is nothing to do.”
Barcelona have won two, lost two and drawn one of their first five league games this season.
They were lucky to pick a point in their opening Champions League game at Borussia Dortmund last week.
They will return to action to play Villarreal on Tuesday evening.