Move on to whom exactly?
There are no white knights coming to the rescue!
Paxton? Paxton is a bust. Let's face it. Name me another SB winning QB who failed to win the starting job (when it was open to him) for his first 2 seasons. I can't think of one, can you? As bad as he looked in pre-season games sometimes, in closed practices he was getting picked off by our defense all the time and failing to read defenses correctly, etc. He's completely useless and it's time to face up to that fact, no matter how big John Elway's ego is. That guy will never be a star in this league.
Brock? He just got run out of town from Houston and Cleveland. Take a look at their QBs right now:
DeShone Kiser - 3 TDs, 9 Ints, a 50% completion % and a passer rating of 49.5.
How about Houston?: They gave up a 2nd round pick just to get RID of Osweiler, and then went out in the draft and traded up to get DeShaun Watson. Giving up a pick just to get rid of a guy you paid $37M to in guarantees just the season before is not an endorsement. Osweiler is a bust too.
Elway is 0-2 in first and second round QBs drafted during his tenure.
Mediocre is mediocre. Graphically represented it looks like this:
Up one week, down the next. And after every high point, coaches media and fans all say: "Trevor had a good week. Now if he could just build off his positives and correct a few glaring deficiencies like his tendency to throw the ball into tight coverages and get it picked off then we'd really have something." Only next week he regresses. One week 2 TDs and no picks, and the team wins. The next week, 2 INTs including a pick 6 and he not only regresses but throws out his shoulder trying to tackle the defender from running into the end-zone with the ball.
Next week, he'll probably throw 2 TDs and no Ints, and people will say "he's turning the corner, and getting better." No, he's not. He's mediocre. That means some good and then some bad, and then some more good and then some bad.
When you play at the TOP of the curve all the time that means you are Tom Brady, Peyton Manning, Aaron Rogers, Ben Rothlisberger (when he's not throwing 5 picks). We don't have a "plus-A-grade QB."
We have a former 7th round pick who is smart. And mediocre.