That's fine, agree to disagree.
None of those players is a real difference maker, at least right now, and it will remain to be seen if they ever become one. Ferrell isn't that good. Stopping the run is not why you pick a DE number 4 in the draft. You need an elite pass rusher there or you don't make the pick. It's not great roster construction there IMO. Abram looked OK from what I saw, jury is still out for sure.
Jacobs is "fine" but he's not an elite RB whose career lasts long enough for the Raiders to hit a winning window. Also drafting RBs of Jacobs talent level (good but not Saquon or Zeke levels) in the first round is just bad roster construction. Jacobs is on par with Cam Akers talent - very good, but not drafting him in the 1st round good.
They are going to need to replace QB. Mariota is not good - that was a bad signing (for that money) - and sounds like he's stinking up camp too. If they didn't like Carr they should have known that and used a 1st in 2019 on a QB with a plan to use another in 2020 if it doesn't work out. The Mariota signing is pretty good evidence they don't like Carr.
The moves they made, IMO, show the Raiders' staff thought they were going to be ready to compete last year. They were not, even with a last place schedule.
I'm trying not to crap on September hope here, so I'll see if I can manage to shut up.
Also, fwiw I am being more critical of Gruden here than Mayock, specifically.