I'm really surprised by the Kaepernick rumors, though this is the same ownership/management that let Harbaugh go, so who knows what else they'll do? I understand Kaepernick has weaknesses, and may never be an elite QB that he was once projected to be, but he led the team to one SB, and he's certainly better than anyone else the team has. Changing QBs is like changing jobs. You don't quit on the one you have until you think you have another one better.
The only way I can see this possibly making sense is if the 49ers were able to trade up and draft Mariota. Maybe they can; the Eagles are talking about doing it, and the 49ers are ahead of them in the draft. Also, the story said that the Eagles may be one of the teams interested in Kaepernick, so maybe they think he?s a more realistically available option than Mariota. If Kaepernick ends up with the Eagles, I assume they would have no interest in pursuing Mariota.
But even for the 49ers, getting Mariota is not a sure enough scenario to risk shopping Kaepernick now, and even if they did get Mariota, I don?t think anyone can say with any confidence that he will turn out better than Kaepernick. Particularly on the 49ers, who don't have anyone on the coaching staff who appears capable of developing him. In fact, if the Eagles end up with Kaepernick, it might be a great move by Kelly. If any coach can get him to realize his potential, Kelly can, and it would probably cost his team a lot less in draft picks than Mariota would.
But I agree with Alpe about Foles. Why would they give up on him at this point? He didn't have a great season last year while he played, but he was on fire the year before. Who's to say what his typical level of performance is at this point? Why not give him another chance? I really don't see keeping Sanchez over Foles, even as a backup, assuming they do get Mariota or Kaepernick.
Edit: Latest word is that Gore might go to the Colts, not the Eagles. And meanwhile, the news for the 49ers keeps getting worse. Two of the top defensive players, Justin Smith and Patrick Willis, are apparently going to retire. Smith is 36, but Willis is only 30, and I don't think anyone saw this coming. Plus Bruce Miller, a FB, was just charged with domestic violence.
Players leaving: Smith, Willis, Gore, Crabtree, maybe Kaepernick (management strongly denies this last one).