Are these 3 Miami Marlins worth keeping around?

The Miami Marlins are now sitting at 32-28 and the trade deadline will be here before we know it, so the question remains, do these three players remain with Miami. Could the three players be used as trade bait, are they worth anything in the market, and would Marlins GM Kim Ng find a replacement for each of them, if possible. The Marlins are in sole possession of second place in the National League East and the final wild card spot for the playoffs, so they will be buyers at the deadline barring some major change.

Miami Marlins catcher Jacob Stallings has been less than impressive this season, despite his recent hot streak. In the past eight games he has played in, Stallings is hitting .316 with five RBI and an OPS of .796. The problem is that even after that eight game hot streak, his season totals at eight RBI and a slash line of .161/.227/.218 and an OPS of .445. Those numbers are unacceptable even for a veteran catcher who adds value with defensive prowess, which Stallings also is lacking.

Kim Ng has made it public that they are shopping for improvements at catcher and shortstop and it seems that Stallings will be on his way out, especially if they can get a more veteran catcher. There aren't many options in the market for Stallings and I would gather his only value would be as a backup, so his trade value is limited, as his time as a Marlin.

The Miami Marlins third base question is really the big question, and although Jean Segura hasn't been named or his position mentioned in trade rumors, is seems that he would be a prime upgrade target. Third base is a huge power hitters position and Marlins starter Jean Segura ranks last in every offensive category in major league baseball among starters who have played at least within 5 games of his 52.

Segura's slash line is .191/.258/.219 with an OPS of .477 and he has not hit a home run yet as a Marlin while only driving in eight. There are better options, even within the organization as it would seem calling up a AAA prospect would be better than Segura's production at the moment. I would much rather trade for a prospect at third base who needs time to grow than continuing this, however Segura won't have much trade value as he is under contract for two years and all monies are guaranteed.