I will welcome Manning if he joins Denver but I am very fearful of this and it does seem like an anti climax to be trading Tebow at this point. You just have to hope that the Broncos do serious due diligence about his fitness and whether he will be a diminished player or not.
That said I can see the logic in Manning coming. The AFC West is not a particularly strong division and the Broncos have got some handy young players on the roster, with Manning there I think we'd win the division and make the playoffs which is going to be a key priority for Manning who won't want to play out his career in an uncompetitive team.
It's ironic that a year or so ago everybody was saying Tebow needs a chance to show what he can do, he could be anything, and now we've had all the Tebowmania last season and he won games and took us to the playoffs, people seem to have made their minds up on Tebow, in the negative.