Now obviously, the topic of Tim Tebow will ruffle some feathers. But I figured I'd at least try to defend Brock (here is the audio for Brock).
My memory is hardly a steel trap, but I remember back in 2010 when Pete used language in interviews that seemed to suggest he was faintly positive about Tebow, and even seemed mildly intrigued by Tebow's sky-high intangibles. As we know, John Schneider really values QB's who tilt the field, and while Tebow is a very poor passer, he is an outstanding leader who can make teammates believe they are destined to win even in the face of harsh adversity. In this regard, I could see interest in Seattle.
While I do not personally think it is a dealbreaker, Matt Flynn is not a read option QB, and that could hold Seattle's offense back after it has grown accustomed to having that wrinkle. It is not unthinkable that Tebow, who thrived in such an offense at Florida, might be able to compete about as well as Matt Flynn would in a mismatched offense.
Most teams do not have two good QBs. Good QBs are in very short supply. The real goal for most teams is having a game manager backup, a guy that you can bring in for a very short period of time that can keep your season alive by doing just enough to win games. When Seneca Wallace stepped in during the 2006 season, he led Seattle to a 2-2 record while Hasselbeck recovered. He was not stellar, but his value was potentially the difference between making and missing the playoffs that year. Tebow may not be an all-pro in the making, but he's cheap, and he's got a 7-4 record as a starter. And he ain't never played on a team like ours, either.
Tebow also adds value as a trick-play type player. Really, he's a little like what Colin Kaepernick was in SF during the 2011 season, minus the accuracy.
If Seattle unloads Flynn, it will mainly be due to salary reasons. I'm not expecting a massive draft pick return. Therefore, it makes sense to replace Flynn with a low cost QB. That will probably be a draft pick. But if on the chance Seattle walks out of the draft without a QB and is looking at what's out there, Tim Tebow could probably be had for the minimum (if he's released by the Jets), which would hold some appeal. If Seattle did actually trade (a can of peanuts) for Tebow, the cap hit would be $2.5 million in 2013 and 900k in 2014. It would be nice if he cost less, but that's still a pretty big savings over Flynn or any decent FA QB.
I would sooner draft several QBs, or acquire Matt Moore (in free agency?). And this is of course assuming that Flynn is dealt, because otherwise there is no point to this. But if for argument's sake, Seattle gets an offer they can't refuse for Flynn (4th round pick or better) in March and they deal him, then they walk into the draft and end up not getting the guy they wanted, at that point Seattle will have to start surfing the waiver wire for whatever they can get at backup. In that scenario, where the best available options would be guys like Vince Young, T-Jack, and Tebow, I think I'd prefer Tebow. He's essentially no worse of a passer than T-Jack but with far superior running skill and durability.
So for me, it would be way down the list of options, but if it did happen, I wouldn't freak out. Really, if our guys made that call, I'd trust them. It would probably end up just being short term fun, if nothing else.