Ken Davidoff of the NY Post ranked his Top 5 All-Time MLB Underachievers and listed the 2006-2008 Mets second behind the 1980s Expos.
About why he chose the Mets, he writes:
2000s Mets. Carlos Beltran would be a Hall of Famer if he retired today. David Wright is on a Cooperstown track. Carlos Delgado probably will miss out, but he has 473 homers on his resume. Jose Reyes will go down as one of the most dynamic, if health-challenged players of his time.
And yet even with these four for 2006 through 2008, with varying contributions from future Hall of Famers Tom Glavine and Pedro Martinez and then two-time Cy Young Award winner Johan Santana, the Mets managed one playoff appearance, 2006, that is remembered most for its jaw-dropping conclusion and then blew postseason appearances by losing their final games in both 2007 and 2008. They just never had the roster depth to supplement the stars.
The Mets rank very high because that, unlike some of the teams further down on this list, the ...