While the Mets have isolated Ben Zobrist as their top free agent target, they remain interested in upgrading their outfield. According to Marc Carig, their interest in Dexter Fowler has cooled, and they view Denard Span and Gerardo Parra as alternative fits.
During the season, the Mets were linked to Parra at the trading deadline, but the Brewers ultimately dealt him to the Orioles. Overall, he put up good numbers, hitting .291/.328/.452 between the two clubs. However, his numbers did drop off with Baltimore. Parra could be a good fit as a platoon with Juan Lagares, as he has hit righties well over the course of his career.
Span enters free agency as a player who put up good numbers in 2015, but struggled to stay healthy throughout the season, playing just 61 games. He hit .301/.365/.431 when healthy, which is quite good generally and especially so for a center fielder.
The Mets were reportedly still considering Fowler as recently as three days ago. The switch-hitting Fowler put up solid numbers during the 2015 season with the Cubs. He hit .250/.346/.411 while setting a career high in home runs with 17.
In addition to outfield help, the Mets could look to add arms to the bullpen, and recently non-tendered Steve Cishek could be a possibility. Cishek spent 2015 with the Marlins and Cardinals. He had a 3.58 ERA over 55.1 innings.