But he won't reveal that person's name yet.
The Ducks will play host to the winner of Wednesday night's Kings-Sharks Game 7 in San Jose.
Andersen was pulled from Game 4, returned to win Game 5, then was hooked again after allowing four goals on 12 shots in Game 6. As Hiller stopped all 12 shots he faced Sunday, the Ducks rallied to victory.
Boudreau said after the game that Andersen was a little sick before puck drop, but he opted to stick with him anyway.
Now? "That's not tough, I think I've got it handled," Boudreau said. "I don't know if it's the right decision. We'll see."
Boudreau said he won't publicly name the starter because "sometimes, I just play the game.
"Make [the opponent] work harder to find out things. It may make a difference, it may not. [Whoever's in goal], he'll do a great job. I always have confidence in the goalies we put in."
INJURY UPDATE: Ducks center
Perreault said he was slashed in the third period of a Game 5 fight against Dallas and woke up Saturday with pain that proved too painful to overcome.
Meanwhile, Ducks forward
DEPTH DEMANDS: The two-goal performance by rookie forward
Boudreau said he spoke Tuesday to forward
"Told 'Palmy' today, 'Keep positive,' there's no reason other than numbers why he's sitting out. … Devante has come in and is playing well," Boudreau said.