Quite honestly, they should pretty much trade everyone they can (except their young starting pitchers) for prospects. Segura can be a competent major league player, but I doubt he's ever a top-tier shortstop. Move him for some minor league prospects if you can.
Same with Adam Lind and even Lucroy if you can find a deal that will wow you. I'd also trade Garza, Gennett, Braun and K.Davis in a heartbeat, if I could, but I highly doubt anyone gives you anything for them so you are kind of stuck bringing them back.
This team needs to go into full rebuild mode and plan to lose a lot of games for the next 2-3 years. A few top-5 draft picks and a bunch of talent in the minors to develop would be the best recipe for building a winner who can sustain it for more than a couple of years.