FWIW, Matt Miller of Bleacher Report has Herbig as the #5 guard in the draft class, so Day 2 sounds about right, though precisely when on Day 2 will matter to Nate's wallet.
https://bleacherreport.com/articles/2805...ngs#slide7
In 2018 (a good year for guards, to be sure), the 5th guard was taken early in the 2nd round (the Colts taking Auburn's Braden Smith at #37 overall, who was drafted as a guard and is now their starter at right tackle only due to injuries, though he's done well enough there that they may just keep him there and call it good), and two more guards were taken after Smith in the second round. (For our purposes, I'm counting players as guards who were drafted with the intent to play guard, whether or not they played guard in college. So, that includes Detroit's Frank Ragnow and Chicago's James Daniels, both college centers who projected as guards and were drafted as such, as well as Dallas's Connor Williams, who mostly played tackle in college but who most thought would be a guard.)
In 2017, by contrast, the first guard didn't come off the board until pick #38, early in the second round, and just two more guards went in the second round--both with the last two picks of the round. One guard went in the third round, and the 5th guard didn't come off the board until early in the fourth round, at pick #115 overall.
There is a vast gulf of money between #37 and #115, as Braden Smith signed a 4-year deal with a total value of $7.2M (including a $3.3M signing bonus). The #115 pick last year, Chicago's Joel Iyiegbuniwe, signed a 4-year deal with a total value of $3.1M (with just a $678,576 signing bonus).
Not sure how evaluators see this year's guard class (or OL class in general) overall, but Miller's top 32 overall is primarily defensive prospects, and just two offensive linemen (both tackles). By contrast, last year's final top 32 from Miller had three OTs, three OGs, and a center. That's just one guy's big board, of course, and the pre-draft process will see a lot of shifting, but at first blush, that suggests Herbig might expect to go later on Day 2 rather than earlier.
(And that's without factoring in precisely
what more there is than meets the eye, as Bob notes. If Shaw's reports aren't glowing, that certainly wouldn't help Herbig's draft stock.)