Mets general manager Sandy Alderson said in a phone interview that the team hasn't determined yet whether it will be a buyer or seller this summer, but that even if New York does decide to sell, top pitcher Jonathon Niese, presumably the biggest Mets trade target of other teams, very likely isn't going anywhere.

"We like Jonathon. He's the only lefty in the rotation," Alderson said. "We'd be hard-pressed to trade Niese."

While the Mets currently don't look like a contender at 37-47, in a division where no team has run away, it doesn't hurt to delay a potential sale. Alderson suggested that their course depends on "what happens over the next 10 to 12 days."

In any case, it doesn't sound like the Mets are ready to make wholesale changes.

"We kind of like our team," Alderson said. "If you look at the run differential, we should be a .500 team. We're not. At the same time, it doesn't mean we should throw everyone overboard."

Alderson made a case that his team is a lot better than its record, based on that run differential (327 runs scored, 331 runs allowed) -- though that may not completely satisfy Mets fans who've seen them post losing records the first five seasons in Citi Field.

"We're not happy with our record by any means," Alderson said. "We're thinking we have the potential to be better than our record."