Yes, but trading away Stanton and Gordon, their most expensive players, is not gong to make them a "viable team in the NL East", no matter how they do it. They were a bad team last year, 20 games behind the 1st place Nats and 10 game out of the 2nd WC. Trading the reigning NL MVP will inevitably be a step backward, unless we trade them Chris Sale, then it is basically a wash. Trading Stanton is punting on next season and at least the season after that.
edit: The Marlins offense is good, but nothing special without Stanton. For all the talk of "needing power" to be successful in the "modern league", the Marlins hit 194 HRs last year, below league average. Remove Stanton's total and they are down to 135 HRs, second worst in the league. Who would they replace Stanton with?
2nd edit: Jose Fernandez's death really altered the way this Marlins organization can think of their team moving forward. With him, sure, maybe a pitcher or two away from being a WC team. As currently constructed, this team isnt going anywhere.