By Deesha Thosar
FOX Sports MLB Writer
NEW YORK — A month from now, the Mets anticipate playing in their first National League Division Series since 2015. But to get there, their performance must be vastly different — and vastly superior — to what they displayed in Monday’s 5-2 loss to the Cubs.
The Mets’ offense set the tone as early as the first inning, when they loaded the bases against Chicago’s Javier Assad, a rookie…