MIAMI — Observations and other notes of interest from Friday night’s 112-91 NBA play-in victory over the Chicago Bulls: – No, not necessarily among Friday night’s biggest storylines on a night the Heat found their way to victory in the absences of Jimmy Butler and Terry Rozier. – Certainly not bigger than Tyler Herro’s effort. – But perhaps among the most significant. – Because to compete against the Celtics, it likely will have to come over the top from the Heat. – As in the shooting of Duncan Robinson. – While not necessarily up to full speed, merely having Robinson on the court at least presents hope of a hot hand. – Arguably the lone remaining rotation player capable of such a hot hand front beyond the arc. – Back injuries, of course, are a great unknown. – And there already has been one aborted Robinson comeback. – With this just a limited return. – But where Robinson’s lack of an appearance Wednesday night in Philadelphia created further angst, there now is hope. – Of something over the top. – Which might be the only way against the Celtics for the Butler-less Heat. – If there is to be hope. – With Butler and Rozier, the Heat opened with a lineup of Bam Adebayo, Nikola Jovic, Herro, Caleb Martin and Jaime Jaquez Jr. – It was the first time this season that Heat opened with those five. – Highwood Highsmith was first off the Heat bench. – Kevin Love followed. – Then it was Delon Wright. – With Robinson then entering for the first time in six games. – After battling a back issue that had him out 10 of the previous 15 games. – Asked at the morning shootaround about the onus being on himself and Herro, Adebayo said, “It’s our opportunity.