Expanding on your point a bit….. In Jeff Darlington’s The Dynasty, which had input from Kraft, Belichick, and Brady (but Kraft was the biggest contributor), it was made very clear that Kraft handled the QB contracts. He decided to let Belichick work the 2010 contract, and Belichick kept dragging his feet and lowballing, such that Kraft pulled the negotiations back from Belichick and finished the deal himself. After that, it was always Kraft and Brady again like earlier. And it was made clear that Kraft and Belichick have the same player economic value system, so they were generally on the same page.
I appreciate Kraft for saving the team and keeping it here, but one thing that has irked me about him is his willingness to take credit through the years and let others take the blame. If Kraft was the contract negotiator for the QBs and had the same economic value system as Belichick, why does Kraft let Belichick take public heat about the Brady decision and leak information about how it was Belichick’s call. It was either Kraft’s decision or not, and I hate how he seems to try to take credit and throw people under the bus otherwise. This is an extension of what he did to Belichick during Spygate (publicly calling him a schmuck instead of standing up and backing his coach) and Deflategate (having lots of tough talk with the media but bending over and not backing his player with the league).