The top of the NBA's Eastern Conference couldn't be much more compact.
Entering Tuesday's action, four teams -- the Miami Heat, Milwaukee Bucks, Boston Celtics and Philadelphia 76ers -- were within a single loss of one another.
And, in serendipitous timing, all four were set to face off, with the Bucks playing in Philadelphia on Tuesday, followed by the Heat and Celtics squaring off in Boston on Wednesday -- a 24-hour span that could have delivered a pair of Eastern Conference semifinal previews.
Let's look at one key question surrounding each of the conference's top four teams as they prepare for the playoffs, and how each storyline played out in two high-level matchups.