i would assume hes inactive isn't he like 90 or something? I'd guess he's probably collecting some envelopes on the strength of his name/age/rep but probably isn't running a crew. who knows.

it's like the charts or whatever have Mangano as the Underboss (or acting underboss) - how active can he be? last I read he was pretty much all but dead from old age and the ailments that come from that