Chapman is just a great overall get. He's not expensive, he has a chance to do what Donaldson did, his defense will still be valuable even if he doesn't hit, he's well worth resigning at the end of his contract if things go well because he will only be 30 years old, and if things don't go well, no biggie. By then you've got other interesting prospects that will be ready to go.
How soon does Moreno look ready?
Does Kirk suprise and become the everyday C?
It's easy to forget Moreno only had like 100 at bats last year. They were a MONSTER 100 at bats, sure, but it's not that unusual to see players dominate the minors for a spell and generate ridiculous numbers only for them to level off over the season. Looks like Moreno can still use a proper tour through AAA just to be sure.
I mean, unless you can pry a good pitcher from the Marlins with Kirk. I suspect Kirk will end up being more like the every day DH, but we have to be careful there: he's SLOW, so unless he's hitting home runs or a crazy high average with lots of extra base hits, he could end up being a double play machine.