The CBF is still pursuing Real Madrid manager Ancelotti to be its new coach in the long term.
Brazil's federation issued a statement in February denying a report they had reached a verbal agreement with Ancelotti, who is under contract at Real Madrid until 2024.
With the semi-final showdown with either Argentina or the Netherlands looming, Tite's men let their guards down and allowed Croatia to score an equaliser from a counter-attack with three minutes left in extra-time.
The Croats kept their composure from the penalty spot as Brazil's Marquinhos and Rodrygo failed to convert.
Brazil have never lost to Croatia in their four previous encounters.
'We try to adapt to the characteristics of the players,' the 61-year-old said when asked about his moves at a news conference.
Tite stressed that Neymar's return was with the full backing of the team's medical staff and the player's physical health was the priority.
Brazil joined champions France to become the second team to secure a place in the knockout phase.
Tite is optimistic about Neymar's recovery from his injury and that he will have his talisman back in time to help them win a record-extending sixth World Cup title.
Tite did not disclose his team for the match against Serbia, with the biggest question mark surrounding Vinicius Jr.