Nice take on it. I think the Left Tackle position in particular has become the second most important position on the field, protecting the QBs blindside. It's amazing what Mailata has become and I'm incredibly proud as an Aussie-Samoan.

But pass rushing, cornerback play, and receiver production

If I had to pick between the three, I'd say cornerback play. A good cornerback can limit a quarterback who has ample time because of a substandard pass rush. It also keeps the score down so helps stop scoreboard pressure which can result in a QB throwing errant passes.

Cornerbacks are one of the best paid positions too which I think shows the value of a CB.