How would you like Gutenkunst to improve the roster when Aaron Rodgers won't give any discount. Davante Adams needs an extension. Jaire Alexander needs an extension & many others. Because of Rodgers, there is no money to give to anyone. He's not taking a discount like Tom Brady to win rings.
Gute could have cleared up cap space this year by converting his roster bonus into a signing bonus. That's a common way to free up cap room. And Aaron had a large roster bonus this year, around 7 million.
But Packers management didn't want to do that because it would make it more difficult to cut/trade him after this season, and that's the plan.
So, there was wiggle room to get more cap space to resign guys or bring in free agents, but that's not what the Packers wanted to do. It's that simple. That doesn't make it wrong. Teams have to make decisions on their future, but they had options, and they're choosing the path that they're on. I totally get Rodgers not being on board with that. He can see what's coming as well as anyone else.