If Kakashi and the Fourth Hokage join Akatsuki, where will they rank?

1 Wave Feng Shuimen 2 Masked Man 3 Uzumaki Nagato 4 Uchiha Itachi 5 Black and White Zetsu

6 Orochimaru 7 Red Sand Scorpion 8 Kakuzu 9 Deidara 10 Dry Persimmon Kisame

11 Konan 12 Hidan 13 Kakashi

Different from Deidara VS Sasuke’s answer, I think Black Zetsu still has great potential... After all, White Zetsu has always been there. Hei Jue has never touched the work, so I wonder if Hei Jue has any unknown abilities...