All season, the Bruins have been floating in trade rumors around Sherwood, the kind of winger every playoff team wants. He hits, he scores, and he's headed toward unrestricted free agency, which is why this talk won't die.

On Friday, a key wrinkle came out on whether a trading team could even talk extension right away. David Pagnotta said, “I don't get the sense that they're gonna give him permission to speak to other teams.”

He followed it with the part Bruins fans really need to hear before dreaming on a sign-and-trade. “At least not now, that could change in the coming weeks,” which basically screams rental risk.

That matters because a sign-and-trade only works if the Canucks allow that negotiating window. If Vancouver keeps the door shut, then Boston would be paying for Sherwood without any guarantee he stays past spring.

Sherwood's value is obvious on the stat sheet and the contract sheet. He currently sits with 17 goals and 23 points and has a cap hit of $1.5 million, which is why contenders keep circling.

Kiefer Sherwood talks complicate Boston Bruins pursuit

Bruins fans can smell the trap, you pay the price, then watch a rental walk.

Sherwood fits Boston because he forces turnovers on the forecheck and still gets pucks to the net, especially off broken plays. If he is only a rental, the Bruins have to treat him like a deadline add, not a core piece.

The Canucks also have leverage because they've already made a new contract offer, even while acknowledging a gap remains. That kind of gap is exactly why teams try to pre-negotiate and why Vancouver might tighten control for now.

So the Bruins' decision becomes simple and uncomfortable, either pay the rental price and chase points now, or hold assets for a player you can actually extend.