Third Base is presumably where Jed was referring to when he said they were going to try and give Morel runway to focus on just one position. I hope that works because the market there really sucks. I'd give Candelario a really healthy 2 year deal if that would work, but otherwise I dont want any of these guys (and there's not really many others of note you didn't touch on...Gio Urshela?). I think if there's one position of need I'm not especially concerned about Jed punting on its 3rd.
On the bullpen, I don't want to fall into the trap of fighting last year's battles. Yes, a few weeks ago things got so bad we were desperate for anyone decent to throw some innings. That said, even for the pen's problems it's too good to sign cromulent veterans just for stability. Brad Hand, Brent Suter, and others of that ilk are highly likelyto blow up in our faces like Brad Boxberger did last year. Either aim high (I still love David Robertson for instance), or use trades to bring in guys you can option to the minor leagues. Locking a roster spot down with mediocre situational relievers is the absolute worst way to fortify the current bullpen.