The legendary status that would come with leading the Knicks to their first championship since 1973 has been a potential selling point for New York’s trade or free agent targets over the years, and Jalen Brunson has a chance to put a bow on a historic run by doing just that. However, when it comes to Greatest Knick of All Time conversations, Brunson still has more work to do, in the view of franchise legend Walt Frazier.