Beef Invictus
Revolutionary Positivity
I don't think Briere knows what he's going to do, other than answer phone calls.
Because the Flyers have announced they're rebuilding, but not "tanking," other GMs know he's under no pressure to make a deal - he doesn't need to create cap room, he's not trying to lose to get Bedard, which means there's no point asking for a Flyers player unless you're willing to pay full price.
So it's a waiting game, he's not going to trade anyone until he receives a suitable offer, he can wait until after the FA frenzy settles and teams that lose out come back to him, or he can pull the trigger tomorrow if someone offers a great deal.
This distinction between tanking and rebuilding that you've constructed is goofy. They are the same thing.