You can talk about the records that Derek Jeter holds. You can talk about his championships and the success of the teams he’s been a part of. You can talk about his textbook inside-out swing and his spectacular jump-throws to first. And while all those have contributed to Derek Jeter’s success and popularity, the continual youthful enthusiasm for the game of baseball may be his most impressive trait – a trait that has followed him from Westwood Little League in Kalamazoo, Mich., all the way to the New York Yankees. When Mr. Jeter announced his retirement on February 12, 2014, the sports world started paying homage to perhaps the most iconic baseball player of his generation.