Five years ago, Arts and Culture Texas profiled a group of millennial theater artists striving to find creative roles for themselves offstage and to bring an innovative and fresh perspective onto Texas stages. Since then, two of those “Next Gen Leaders,” Brandon Weinbrenner, artistic associate at the Alley Theatre, and Mitchell Greco, artistic associate at Stages Repertory Theatre, have not only steadily risen to directorial prominence in Houston, they’ve also managed to carve out a personal life and marry each other.