The idea that you'd even consider moving on from Rodgers at this point is mind-boggling. I got moving on from Favre because he threatened to retire every year for each of the 2-3 years before drafting Rodgers. You have Rodgers playing at an MVP level and under contact until 2023. And it's in an era where Brady and Brees are playing well into their 40s. It just doesn't make sense.
To be fair, it seemed to be a consensus among fans/talking heads last season/this offseason that Rodgers was severely in decline due to his efficiency/production drop in 2019. I would never count Rodgers out of ANYTHING, even if he's a grandpa in football years.
This is all wild speculation on my part, but I think it's less about moving away from Rodgers specifically and more about moving away from his Top 5 cap hit. His cap hit is $36M next year, that's more than GB is spending on their entire defensive front 7 in 2020. That's unsustainable IMO. You HAVE to hit on a good chunk of draft picks who can produce immediately and there's little margin for error. You remove that barrier and you have some wiggle room to shore up immediate deficiencies.