Andersson, Chytil, Nieves and Lettieri are scheduled to play against the Philadelphia Flyers at Madison Square Garden on Monday. Vigneault said at least Andersson and Chytil will also be in the lineup against the Flyers at Wells Fargo Center on Tuesday.
"The games that the kids [Andersson and Chytil] have played and some other guys like 'Boo' [Nieves] and Vinni, all those guys have played real well," Vigneault said. "We've got some tough decisions to make here as far as who we're keeping with our team."
Vigneault said Miller's versatility of being able to play all three forward positions allows for him to be shifted around. He added that at some point he'll likely be at center, but it won't be at the start of the season.
"I know what I need to do at all three positions and I don't think that changes my mindset when I wake up and come to the game," Miller said.
Vigneault said Andersson and Chytil, each selected in the first round of the 2017 NHL Draft, have impressed him with their skill set, skating ability and hockey IQ.
Vigneault also said he's not opposed to starting the season with two 18-year-olds on the opening night roster. The Rangers haven't had an 18-year-old on the roster since goalie Dan Blackburn in the 2001-02 season. They haven't had an 18-year-old skater since Manny Malhotra in 1998-99.
"It's a possibility," Vigneault said.
-- Dan Rosen