I say this as someone who never quite warmed up to Jed Lowrie and his pasta-diving, called third strike complaining ways. But if you have a chance to acquire Lowrie, now 31, for your #30-ranked, unproven prospect, on a 2-year, $14M deal, you pull the trigger whether it fills an identified need or not.
Let's start by talking about what you are getting when you add Lowrie. Yes he's coming off of a down year at the plate, but having watched him for two full seasons and followed him for several more, I would describe Lowrie as a hitter who has unusually good plate discipline as well as good power for a middle infielder.