The Boston Celtics are expected to remain flexible when it comes to roster-building, so long as proposed moves don’t mess up Brad Stevens’ money-saving blueprint. Amid what many people feel will be a transition year for Boston, the Celtics will receive plenty of trade calls from teams trying to gauge their situation. As we imagine potential fits for the Celtics, of course, not all trade ideas are equal. Pretty quickly, the idea was shot down by various Celtics pundits, most notably Jack Simone of Hardwood Houdini. “DeRozan makes no sense for the Celtics,” Simone wrote.