I agree with regards to investment. ROI on the D line has been poor to say the least.
I think our offensive weapons are fine, especially with the emergence of Knox. Oline issues are a bit of bad luck, IMO, with Dawkins (probably COVID related) and Williams regression, and Feliciano's surprise weight loss- not that he was anything special. Brown seems to be a nice find. Overall, I don't see any real personnel reasons for our offensive regression from last year. And when you have an MVP caliber $250M QB, he's supposed to elevate those around him.
I'd like to see us go back to more of a spread attack. Seemed to work really well last year with Josh getting rid of the ball quickly neutralizing some oline deficiencies. Some of these quick hitters can be a substitute for an ineffective run game as well. Long developing plays are causing more problems than they're worth.