The Mets' lineup probably wasn't as bad as people were making it out to be before the team re-signed Yoenis Cespedes, but it looks even better right now. It is tough to keep an entire team healthy at once in any sport, but when the Mets are at full strength, their lineup should look something like this:
|2016 ZiPS wOBA
That last column contains each player's projected wOBA (weighted on-base average) from Dan Szymborski's ZiPS projection system. The metric isn't adjusted for league and park, but for reference, the average major league non-pitcher had a .318 wOBA in 2015. So everyone in the lineup could very well come in near or above that league average mark. And the weakest hitter in that lineup is certainly Cabrera, whose .265/.315/.430 line last year was a bit better than league average by wRC+.