Actually thinking about it, and just to quote your same post for a third time, if Kevvie is wanting to figure out how to get Staggs more involved in the play he just needs to look at how Turbo played for NSW in game 1.
Turbo basically played as a 2nd fullback even though his default position was right center and the warriors have been trying to figure out how to play with two fullbacks when you watch Walsh and RTS playing... I believe in Walsh's first game RTS basically setup at 6 and the 5/8 onwards all shifted out one (I think Murchie was named at 6 in that game, which should've been a give away from the get go).
For us next year right center is actually the best position to try and adapt as a floating player in attack and we could actually setup in a similar fashion to NSW and the rabbits anyway.
Cleary effectively plays middle of the field with Luai on the left, which could've left Turbo planted at right center getting very little ball; however Turbo rectified this by heading infield and basically playing more fullback than Teddy, with Teddy plugging into the right side whenever Turbo went infield. Reynolds already plays that role for the rabbits with their right side getting very little ball, unless Cody and Latrell head over to that side, so Staggs could quite easily float around the field as a second fullback from right center next year.
This works for the broncos in a couple ways.
Staggs can play right center as a default, but can freely roam to the middle of the field or inject himself into the sweeping plays as needed. With Staggs still being the right center we don't lose his damaging ball running and ability to dominate his opposite number 1v1.
Niu is looking like being the fullback next year (unless we recruit one), but in this system the fullback can just focus on doing all the kick returns and support play through the middle, which should suit Niu... or plug into the right side when Staggs floats around the field.
Capewell (if we end up getting him) is also a very good second rower to have in that situation given he is mobile enough to shift over to right center if Staggs does head infield and we want to shift to the right.
Five eight in that system is required to own the left side attack, which could quite easily be filled by Albert who is a smart footy player.
It will take a lot of coaching to get that sort of system working on a weekly basis and to keep it fresh throughout the year so defences can't load up, but it does put less onus on Staggs to be a creative playmaker at 6, whilst still giving him flexibility to inject himself across the field.
I think Kevvie is reasonably smart as an attacking coach and could get things working, but Staggs and Niu are nowhere near as smart as Turbo and Teddy to know how to position themselves across the field and prevent overcrowding, but with that kind of system you could run with a backline of:
1. Niu (needs to float between traditional fullback, but also plug into the right side when Staggs is floating)
2. Cobbo (left side)
3. Gagai (left side)
4. Staggs (right side and allowed to float)
5. Mead (just need a solid right sided winger that can communicate with the right sided 2nd rower and fullback to know when Staggs is off floating)
6. Kelly (left side)
7. Reynolds (middle and primary link man in the backline)