Junior's plot to let Richie take over puts me in mind of Paul Castellano in several ways.

1)Junior planned to let Richie become Boss,while Junior could still be the real Boss,sit back,stay out of the spotlight,and collect money. Just like Castellano holing up at his White House.The fact that he thought that any of the Capos would back Aprile shows how out of it he was.

2)Junior was so out of touch with the street that he thought the guys would fall in line out of fear of Richie,just like Big Paulie naming Billoti as his Underboss. He had no idea that the Capos considered him a lugheaded scumbag.

Just like Paul underestimated Gotti,Junior underestimated Paulie and Silvio.Before Janice killed him,Sil had already advised Tony to kill Richie.

If by some chance Richie was able to get rid of Tony,the next move would be Paulie Walnuts putting Richie and Junior to sleep.