Inbox: How is the A's bullpen shaping up?

Projected bullpen as of now? Do you still feel it's one of the best in the American League? I have some concerns with the depth.
-- @Vegas_Vandal
The mere presence of Blake Treinen makes it one of the best, no question, and the closer is flanked by a slew of strong arms -- including an experienced closer (Joakim Soria) and a future closer (Lou Trivino) right behind him. Yusmeiro Petit has also proven invaluable to the A's, and you have to like having Ryan Buchter as your go-to lefty. Fernando Rodney, even past age 40, posted solid numbers last year, and J.B. Wendelken left a good impression at season's end. That's seven right there, and I suspect the A's will carry eight in their bullpen -- particularly if they're serious about keeping an "opener" on board. That job would presumably go to Liam Hendriks again.
There will be others in the hunt for a job, though: Ryan Dull and Andrew Triggs will be in the mix, and offseason acquisition Tanner Anderson could ultimately be grouped among this bunch, too, should the A's decide not to stretch him out in Spring Training. Then there's the strong possibility of the A's adding another lefty to the 'pen before the season opens, so stay tuned.
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Any update on a potential Khris Davis extension?
-- @JimmerDMC
There has been ongoing dialogue between the two sides for quite some time, but I just don't see this thing getting done anytime soon, if it gets done at all. There's really no urgency here, it seems, so I'd imagine the A's would at least wait until next offseason to try to hammer something out -- especially since the market is so wacky right now, anyway.
This would be no small deal for these A's, but I think Davis is more than worth it. His presence on and off the field cannot be overstated, and his production speaks for itself.
What are the odds Dustin Fowler will be on the 25-man roster come Opening Day?
-- @IAmAndresMM
Right now, I see Fowler as the odd man out come Opening Day -- but I wouldn't be surprised if he turns out to be an integral piece of this 2019 team. Nick Martini will have a leg up on Fowler entering camp, but I could see the tables turning as the season wears on. There's also the chance Ramón Laureano regresses in his first full big league season (though I hope that's not the case, because he was an absolute joy to watch play in 2018), which would allow Fowler entry back into center field. Yet there's also Mark Canha, Chad Pinder and Franklin Barreto in the mix for those two spots, so Fowler will really have to prove himself to earn a job.

Will Daniel Gossett pitch for the A's this year?
-- Eddie C., Warsaw, Mo.
It's highly unlikely. Gossett underwent Tommy John surgery in August, so he's still months away from throwing off a mound. Best-case scenario for Gossett: Avoid setbacks and enjoy a normal offseason next winter, then enter camp in 2020 with full health on his side.
Projected Opening Day batting order? I can see Martini/Jurickson Profar 1-2 against right-handed pitching.
-- @ben_stewart87
Don't forget about Matt Chapman. Right now, I see it going something like this against right-handers: Martini, Chapman, Matt Olson, Davis, Stephen Piscotty, Profar, Marcus Semien, Laureano, Chris Herrmann. Olson and Piscotty are interchangeable, and Laureano could hit ahead of Semien, too.