QB Spencer Rattler is a strong candidate to start in Derek Carr’s absence, sources tell Garafolo and Rapoport

ELLIASJWILLIAMS said
I like DA more than most, I also think like most coaches, you can't win if you don't have good QB play. Seans great, but if he doesn't land Drew he looks like he did w/ Wilson. If Bill doesn't land Brady he looks like he did w/ Cam Newton and his young draft pick.

If Rattler is DA's guy his career trajectory as a HC could change 100%

I think Rattler is KK's guy, not DA's guy. That's why I think that Rattler will start against TB. We've seen glimpses of what Rattler can do in this system. I know it was only preseason, but he made some 2nd and 3rd stringers shine. There was definitely something that went through the entire team that wasn't there with Haener.