Transaction: a massive trade proposal emerges between the Bruins and Sabres

The rumor links Bruins defenseman, Brandon Carlo to the Sabres in return for prospects.

The Bruins still need to work on clearing cap space and add to their dwindling prospect pool.

Carlo, who is a top-pairing, stay-at-home defenseman could be considered an asset for any team that wants to strengthen their blueline.

As the Buffalo Sabres prospect pool is one of the deepest in the NHL, they could afford to give up prospects for a win-now piece, which is what sounds like GM Kevyn Adams is shooting for.

With Ryan Johnson and Isak Rosen being NHL-ready prospects, they could be sent to Boston in return for Carlo.

This could allow the Bruins to develop them for the Bruins' future in which they hope to maintain their competitiveness.

All in all, the Sabres gain a win-now piece to bolster their blueline in Carlo and could help transition the Sabres into a contending team.

Whereas Johson and Rosen could lead to the Bruins re-configuring their defensive core but offer a substantial return on investment for the trade in the future.