Griffey falls into the category of an old player with an injury history, just the type GM Omar Minaya has been criticized of pursuing. Even so, he hit 18 homers with 71 RBI in 490 at-bats, so there’s still life in his bat.
Griffey has never been enamored with New York, but that was the Yankees. Griffey would only cost the Mets money, and a lot less than they’d pay for Manny Ramirez or Adam Dunn. The best thing is they won’t have to dip into their farm system.
So, if they want a rental bat for a year, Griffey could be a viable alternative. He doesn’t make the Mets younger, but improves their bench and outfield for a minimal cost.