Sweeney has yet to inform any of the club's nine free agents - seven unrestricted, two restricted - of his plans for them. He did say, however, that it's unlikely all of them return given the league's cap environment.
"We haven't definitively ruled anybody out," said Sweeney. "We're going through the whole pieces. I'll sit with the coaches, and we're just going to go back over where we need to go and the improvements we need to make and be target-specific in the areas that we can do so."
Boston's free agents include Nick Holden, Anton Khudobin, Rick Nash, Riley Nash, Tim Schaller, and Tommy Wingels. The B's restricted free agents are Sean Kuraly and Matt Grzelcyk.
"Obviously, our team accomplished a lot to get to the 112-point level. Ideally, you'd like to bring everybody back and think you take another run at it. I don't think that's realistic in a cap environment," said Sweeney. "We can afford the salaries they're currently at, but some of the guys had very good years, and you expect that to change. I've had discussions periodically with some of those players and will have with their representatives going forward in the next month or so.
"We've got some players that we think, internally, will continue to push and carve out goals, and we'll see how we piece the jigsaw puzzle back together. But, all great contributors, and in an ideal world, you'd like to entertain bringing them back, but I don't know if that's realistic today."
With Ryan Donato getting a taste of the NHL, Anders Bjork (shoulder surgery) expected to be fully healthy entering training camp, and prospects Austin Czarnik, Jakob Forsbacka Karlsson, Trent Frederic, and Jack Studnicka pushing at the lower levels, Boston could have plenty of options to fill their forward holes from within.
"The whole league is trending towards that [younger model]," said Sweeney. "We don't want to put players in positions they're not ready for and they're not able to succeed in on and off the ice. So, the players themselves have to, as I use the term, have to determine it.
"But they should be really, really excited there is an opportunity there. If they're a better player than the player in front of them, they take the job. If they're not, they have to go and learn what it takes to earn that job"