I've always really wanted to see a Anoaʻi Family stable.
I'd have The Usos as Tag Team Champions, managed by Rikishi.
Samu, Manu and L.A Smooth as one sub-faction, all wearing black and silver
Roman Reigns and Rosey as a tag-team wearing black and gold
Tama as a manager who occationally wrestles.
Bring in Black Pearl as the jobber of the group.
I'd have The Rock as the leader; I'd give him a new attire, some full-length leggings with a simular pattern to Peter Mavia's tattoo design.
Also have a re-packaged Camacho managed by Haku, Sim Snuka and Tamina Snuka managed by Jimmy "SuperFly" Snuka.
I'd also have The Barbarian as a manager thrown into the mix too as Roman Reigns' manager.
I'd have Roman use Moment of Silence, Jackknife PowerBomb, Football tackle (modified spear, gore), Spine Buster, Samoan Drop, Samoan Spike, Banzai Drop and Stretch Plum as his main move set.
Start the group my having The Rock and The Wild Samoans cutting a promo on how their family has been over-looked compared to The Harts, Armstrongs, Von Erics etc and now they're taking the WWE back.
WWE Champion - The Rock
Intercontinental Champion - Roman Reins
US Champion (re-branding the belt as The Samoan Championship) - Manu
Tag Team Champions - The Usos
Divas Champion - Tamina
You could have the Anoaʻi Family take out the other big families and stables in WWE; I'd run a storyline where they feud with the top faces leading to a Survivor Series elimination match; after loosing the match I'd have The Rock revert back to a baby face and release everyone else except Usos, Rikishi and Tamina.
That's how I'd book it anyway.