Ah there it is, the "biased" card. The go-to for Tebow fan when someone says something about Tim that they don't want to hear, no matter how benign. Right.
I would be interested to hear what your take is on why Elway decided to get rid of him - especially given the fact he could have signed Manning and kept Tim as a backup to "develop"... and whether and why you consider that to be the "objective" view.
Good lord, it's apparent that you don't even know what confirmation bias means.
Confirmation bias (also called confirmatory bias or myside bias) is a tendency of people to favor information that confirms their beliefs or hypotheses
If you will, it's the old adage "when you carry a hammer, everything looks like a nail".
Basically, you are convinced that Tebow is a terrible QB. Therefore, the "reason" why Elway traded him away was because he's a terrible QB.
Like I said, confirmation bias.
Why did Elway get rid of him ? Any number of reasons. We can start with "clearing the deck" for Manning. Kind of like how Elway shipped Orton out after Tebow took over as the starter. Or how the Giants released Warner after the 2004 season. When a starter gets replaced, he's often on a new team the following year.
Or, we can look at the fact that when a new guy takes over as the coach, GM, or head of football operations, they like to clean house and go with guys that THEY chose. Like what Reggie Mackenzie did in Oakland. Just after Josh got fired, articles started going up talking about how Tebow had lost his main supporter in the Broncos organization.
We could also look at Elway's belief that in the short term, Denver would need to have created a separate offense for Tebow. He apparently didn't see it the same way BB does. He gave an interview in which he talked about not wanting to have a 2nd offense.
Then you have Elway's impatience, i.e. not wanting to spend the time necessary to develop Tebow. This comes down to him not seeing the same things that BB and Josh saw.
Then you have Tebow's contract. At the time, it was much more than what he's making now. It was much cheaper to grab a QB in the third round (or whenever they got Osweiler).
It might also be that Elway thought he was doing Tebow a "solid". Peyton signed a 5 year contract and it was expected that he'd play most of it.
That's about a half dozen perfectly valid reasons for trading Tebow instead of keeping him to be the #2.