I can understand why the Pacers would do this since Jrue is the exact sort of player Carlisle loves playing instead of his young guys that need minutes to develop during a rebuild (seriously though, Jrue would help cover for Tyrese being a terrible man defender) and the Blazers getting two firsts and a prospect and Lowry (who they could potentially move for even more assets at the deadline) wouldn't be a terrible outcome for them but wouldn't the Heat be better served just cutting out the middleman and trading for Jrue instead of Buddy?
Bam
Jovic
Jimmy Buckets
Herro
Jrue
is infinitely better than
Bam
Jovic
Butler
Buddy
Herro