What's up with that?

It was all good just a week ago, for the Miami Heat. Between February 3 and March 18, the Heat went 15-4, with their only losses coming against the Mavericks, Bucks, Suns, and Timberwolves. (The Wolves game was on the second night of a back to back, and Jimmy Butler didn’t play.) That run led them to first place in the Eastern Conference, with a 2.5-game cushion.

Fast forward a week, and Miami’s lead has disappeared, with the team having lost four games in a row in embarrassing fashion. What’s up with that?