I think I just don't buy into the internal 2B guys (Maicer, Kawasaki, Goins, Tolleson) being reliable over a full season. Maicer is 34 in September, has maybe an 80 wRC+ true talent bat, and has graded as about an average 2B defender in his career, so we can probably expect him to be below-average going forward. Kawasaki is basically the same player, but from the left side. I see 2B as a huge hole.
Gose is intriguing, but I'm not really buying the 23 UZR/150 this year. Love him as a 4th OF, but an 80 wRC+ is going to make it very difficult for him to be a league average contributor overall.
I agree re: Martin. He would be perfect.