Getting fleeced in a trade would be a catastrophic result for the 49ers in the 2019 draft. That’s the precise scenario that plays out in Chad Reuter’s latest four-round mock draft on NFL.com.

The picks themselves aren’t bad, but the notion that San Francisco would move back out of the second pick for what amounts to basically nothing with Nick Bosa still on the board is a doomsday scenario for John Lynch and the 49ers that would quickly raise questions about the 49ers’ front office and its ability to capably navigate on NFL draft.

Reuter proposes a trade between the 49ers and Raiders that gives the Raiders the No. 2 overall pick in exchange for No. 4, a fourth-round pick (No. 106), and a 2020 second or third-round selection.

That’s an abysmal trade for San Francisco. Using NBC Sports’ trade value chart, the best-case scenario where the 49ers wind up with the No. 33 pick in next year’s draft results in San Francisco coming up about 450 points shy of the value of the No. 2 pick.

A more realistic compensation for San Francisco in a trade with Oakland would be No. 2 for Nos. 4, 27, 106 and a future mid-round pick. The 49ers won’t be eager to move that pick for anything less than a monster haul, especially with Bosa available for the taking.

Here is how the rest of this mock draft shook out for San Francisco:

Round 1, Pick 4 | Quinnen Williams, DL, Alabama

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Williams wouldn’t be a bad compromise if the 49ers miss on Bosa. He could conceivably be the pick at No. 2 with his ability to stay on the field for all three downs. He’s impactful against the run, but the prospect of him and DeForest Buckner pushing the pocket from inside is an extremely intriguing prospect for a 49ers defense that needs help pressuring quarterbacks. An edge rusher to line up across from Dee Ford would be ideal, but Williams isn’t a bad option.