Anticipating that Caleb Williams and Drake Maye go #1 and #2...
Let's say the team doesn't love Jayden Daniels enough to draft him. I wonder what Chargers would give to move up from #5 to #3 and jump AZ for MHJ? Could you get their early 2nd rounder (#37) for that if they love him?
Then let's say AZ continues to build around Murray as expected and take either the next best WR at #4 or the top OT prospect.
Now at #5, you're sitting there with Daniels still on the board and NYG picking behind you. If Kirk Cousins leaves, MIN needs a QB and that's the type of team that could convince themselves they're a playoff team with one. Could you deal #5 to MIN for #11, their 2nd (#42) and a future 1st? We've seen deals like that for top QBs.
So now instead of #3 (and our own 2nd, #34), we're sitting there with #11, #34, #37 and #42 (plus an extra 1st next year). Supposedly a strong/deep WR and OT draft class. You can probably still fill one of them at #11. Try to move up from one of those early 2nds back into the 1st to address the other. Use the remaining two high 2nds to just go BPA (maybe double dipping at OT or WR even). Then next year you have an extra 1st to use as part of a package to move up for the QB position you left un-addressed this year.