Mets360 with Jon Springer, author of Mets by the Numbers

First a website and then a book, "Mets by the Numbers" is the tale of who wore which uniform number while with the Mets.  If I throw out a uniform number, you'll have a strong association with it.  Tom Seaver is 41.  Jerry Koosman is 36.  David Wright is 5.  But who's 7?  And who's 15?  Jon will give his thoughts on the numbers that help us define the players.