I do think Merlino is still officially the Boss and currently Mazzone is the acting.

When Merlino gets off all his restrictions then we'll know what the deal is. They're not pulling in enough money to keep sending him envelopes so he either comes back and runs things or he stays south and decisions will have to be made. If Joey stays in Boca then i think Mazzone will become the official boss.

Once again, just the way it looks to me.