Day 13 of the Boston Celtics Newsfeed's 30-day preview series leading up to opening night of the 2017-18 NBA season. br br Today, CLNS Newsfeed Manager Mike Walsh discusses last spring's meteoric rise of the Miami Heat and an offseason spent throwing money around to create a very deep and dangerous roster. br br Visit CLNSRadio.comboston-celtics-news for Walsh's written preview. br br Tune back in tomorrow when the Walsh is joined by CLNS Celtics Editor at Large Cory Prescott to preview the Milwaukee Bucks.