I had some thought on your thoughts.

1. In one of the Tuiaki interviews, the interviewee came to a foregone conclusion that Takitaki was the starter, and Tuiaki was like, no, pull the reins back. So I take it more like Tuiaki was worried that Takitaki was not in football shape and despite the hype might not even be the starter.
4. So far, Isaiah Kaufusi has looked really good at linebacker and has consistently made disruptive plays. I could see him getting some reps this year and being a difference maker.
6. Excited to see what Chaz Ah You can do if anything, in such a short time to prepare. However, I doubt he would start over Zayne Anderson, who is 6'2 200+ and runs a 4.4 40. He is one of the fastest players on the team. If Chaz ends up starting, either he's that good or some promises were made .