I saw a video earlier today with Todd McShay talking about the top of the draft and he mentioned that with Brady, the WR evaluation is totally different because Brady knew where the ball was going quickly and knew where you needed to go and the WR needed to be able to read defenses like a QB. So it wasn't really about getting an elite WR. I suspect Bellichick had no real way of dealing with the passing game post-Brady and now that we're post-Bellichick then I suspect their drafting will look more normal.
Also talked a bit about Jayden Daniels and mentioned that confidence was the one real reason for the late improvement and that the tools and processing were always there.
True... but Tom Brady probably had the fastest 'processor' when it came to the quarterback position of all time. When you have that, it doesn't matter too much who your wideouts are. That said, he did still have some years of Welker, Gronk, Moss, etc. He did have some good talent from time to time. He also had some very good defenses (I'll give Bill credit for that) which can change the situation of what you need to do.