I dunno if it turns them into a 50 win team, but it provides a bit of a framework.
IT, Harris, Monroe. Add in a few supporting players -- Rozier, Smart, Crowder, Olynyk, Zeller, Hunter, Young.
That's a solid enough group that with some Brad Stevens magic, a free agent or soon-to-be-free-agent star player might say, "Hey, that team could be pretty good if I went there."