What you described is "win-now." There's nothing wrong with having a rookie to groom behind Flacco. The QB situation is clear. Not that it matters but I think Elway did the right thing in drafting Lock in the 2nd round. It might not work out long term, but again it might!
The question is "what do you do meantime?" If they are committed to "win-now" they desperately need every good player they can get. And that starts with Chris Harris.
If they feel like "we're maybe a 7-9 or 8-8 team and not getting a playoff berth this season" then what the hell is the point? Start Drew Lock right now. Trade Chris Harris. Hell, they might as well trade Von Miller. They could probably get multiple first round picks for him.
If you're NOT going to compete right now, then build for the future the way the Raiders did last year. They traded Kalil Mack and Amari Cooper and got draft picks. Now they feel they are ready to start competing. We'll see but at least they are consistent.
That's what Elway needs to be. Consistent. All in or all out. Pick your lane.