Thanks to Their Versatility, the Mets Are Feeling Good

Edwin Díaz’s injury would crush some teams, but the Mets, with a deep and experienced roster, have remained optimistic.

The Mets reloaded their starting rotation by signing the right-hander Justin Verlander as a free agent this off-season.Credit...Lynne Sladky/Associated PressPORT ST. LUCIE, Fla. — It is one of baseball’s enduring little mysteries, how a game so rich in possibilities also offers so many precedents. You may see something new at the ballpark every day, yet if you stick around a while, you feel like you’ve seen it all before.

So it was in mid-March, when the Mets lost Edwin Díaz, the game’s premier closer, to a torn patellar tendon in his right knee just two weeks before opening…