I hope that Narcisse dies by the season finale, making him a bad guy like Rosetti. But hope that the FBI guy is in for the long haul. The show needs to transition to a more Breaking Bad-esque plot style that increases tension between seasons instead of dumping it. Part of my adoration for the BWE plot was how swiftly the use of Rosetti tightened the tension, and the writers need to reintroduce that dynamic while expanding it