Chargers: Potential trade targets on teams with bad records

Chargers trade targets: NFC
Here are the list of teams 1-3 or 0-4:
- Washington Redskins (0-4)
- Arizona Cardinals (0-3-1)
- Atlanta Falcons (1-3)
Brandon Scherff, Right Guard
The Chargers haven’t been terrible along the offensive line this season, but they also haven’t faced a dominant defense every game either. In their only contest against a solid set of defenders, the line gave up five sacks.
Is Scherff the one-year rental the Chargers should inquire about?
Much of the focus this offseason has been about acquiring left tackle Trent Williams, which still isn’t a bad idea. Scherff, though, has a few more interesting qualities. For one, he’s only got one year left on his deal, which wouldn’t force the Chargers to be committed to him long-term. He’s also miles ahead of any of the three guards on the current roster, currently rated Pro Football Focus’ sixth-best guard with the second-highest run-blocking grade.
There are at least two problems with obtaining the former first-round selection: He’s not played a full 16 games since 2016, and it will likely take quite a bit to obtain him. He, like Williams, may also not be up for sale. The Redskins, to the detriment of their team, have not traded their left tackle for any offer. Would they up-and-trade their starting guard?