From championship teammates to Finals rivals—The History in Green

BOSTON, MA - DECEMBER 13: Boston Celtics players Frank Ramsey, left, and Bill Sharman hold some of the Globe Santa gifts which funds contributed by Boston Globe readers will buy for children in need at Christmas on Dec. 13, 1957. (Photo by Paul J. Maguire/The Boston Globe via Getty Images) | Boston Globe via Getty Images This week we’re going to take a break from the trade rumors and do something that’s our privilege as fans of the most successful franchise in NBA history.We’re