The Boston Bruins enter the summer chasing speed and skill, and Don Sweeney just gave the strongest hint yet that Casey Mittelstadt could be the price.

Sweeney and Cam Neely said it plainly at their end-of-season presser this week. Boston needs more.

The center market is thin. Real thin.

Free agency offers a 38-year-old Claude Giroux and a 35-year-old Marcus Johansson, both fresh off 49-point years. Not the answer for a top-six rebuild.

Evgeni Malkin signing an extension Tuesday only tightened the screws on every contender hunting a pivot. Trade is the lane now.

That's where Mittelstadt enters the conversation. He's 27, signed at $5.75 million for one more year, and the kind of asset other GMs actually want back.

Why Boston's $15.4M war chest still won't be enough alone

The Bruins sit on $15,415,417 in cap space. Sounds like plenty until you price out Robert Thomas or Elias Pettersson.

Pettersson carries an $11.6 million hit. Thomas would cost a heavier package. Neither team is taking back picks alone, not in this market.

Mittelstadt finished with 42 points and a +12 rating in 71 games. He chipped in 2 power play goals and 5 power play assists from a complementary role.

Tougher to ignore: he took 186 faceoffs while playing the wing and won 91. A 27-year-old former eighth overall pick who can swing inside is a usable chip.

The other complication on the second line. Viktor Arvidsson, who finished with 25 goals and 54 points, is heading to unrestricted free agency.

If Arvidsson walks, suddenly Boston has two holes alongside Pavel Zacha. Moving Mittelstadt without a 1C secured first would gut the top six.

That's the tension. Marco Sturm called the Mittelstadt, Zacha, Arvidsson trio "a good mix" this season. You don't just blow up a working line to chase a name.

But standing pat is how Boston ended up here in the first place. Sweeney already said the work starts now.

So the question hanging over the offseason is simple. Does the front office cash in Mittelstadt for a swing at Thomas or Pettersson, or hold him as insurance if Arvidsson signs elsewhere?

Boston has James Hagens, Dean Letourneau, and Fraser Minten in the system. Internal options exist. They just aren't ready to anchor a top line in October.

The Mittelstadt decision tells you which version of this rebuild Sweeney actually believes in.