I feel like we could do worse than re-upping Nick Green to another minor league contract. A couple depth signings make a lot of sense, Especially if Lowrie's starting in AAA, meaning whatever we do at SS is probably going to involve a patchwork of FA's anyway.
Green isn't anything special, but he was an above average defensive SS by UZR/150 last year (+8.3 actually, which is pretty darned good), he's above the Mendoza Line offensively, and he's cheap.
He had a pretty much career average season last year offensively, which means that what we saw there is what we could probably expect going forward -- and as mediocre as it was, it's still better than any FA except Scutaro, Tejeda, or Cabrera, all of whom for one reason or another are major regression candidates this year (and would be much more expensive anyway).
He'll do as a third or fourth option -- which is all he ever was last year anyway. And he'll do as a utility man, which is Green's usual role when he cracks a big league roster. And if you have no one better at the end of the day, Nick Green is survivable as a starting player.
I'm not saying the guy should be put anywhere near a starter's job, but he'd be a useful guy to add to increase our depth at a pretty shallow position.