The mailbag is back! In this episode, we get into the Celtics offseason (and how limited their options are), how the championship impacted Tatum and Brown, Kristaps Porzingis injuries, Derrick White's progression, and whether Jordan Walsh can be a contributor next year. John Karalis of Boston Sports Journal gets into all of that, the forgotten era in Celtics (and NBA) history, duckboats, and his new book.