Fixing SNSD's Positions (for fun!)

I wanted to try my hand at fixing SNSD's positions so they're more balanced.
There is no disrespect to Yoona or Taeyeon, I just think technically speaking that Tiffany would've/was a Faux-Leader and Face of the Group for SNSD and deserved official positions. In addition, Yoona is still the main visual and center but Jessica, Yuri, and Seohyun were continuously given those Faux-positions anyway.
I also thought it was more reasonable to just give Sooyoung the main dancer and rapper positions because not only does it give her more credit for her talents but I think having no 2nd main rapper/Tiffany as a sub-rapper is just ridiculous. So, instead Sunny is the only sub-rapper.
Vocal Line: Taeyeon, Jessica, Seohyun +Tiffany, Sunny, *Yuri
Dance Line: Hyoyeon, Yuri, Sooyoung + Yoona, *Seohyun
Visual Line - Yoona, Yuri, Seohyun
Rap Line: Hyoyeon, Sooyoung + Yuri, Yoona, Tiffany + Sunny
(Turned off comments because y'all can't behave yourselves)
Clips:
• SNSD - Yuri's Voice (WIZ*ORBIT)
• Girls Generation Cover... (GIRLSTJRV)
• Tiffany Young (T-Manag... (SOSHIMI)