Part 3/11:
The New York Mets made a notable addition by signing veteran DH JD Martinez to a one-year, $12 million deal. While Martinez had a strong start to the season and helped the team during crucial summer months, his performance declined significantly by the end of the year. Despite being a positive contributor (106 OPS+), the signing did not transform the position substantially for the Mets. Therefore, a C+ grade is appropriate—showing it was more beneficial than detrimental but far from groundbreaking.