He's actually been pretty dialed in with Seahawks stuff over the years but it also matches what everyone around the league is saying too so my guess is a lot of it is right. Bob McGinn, Florio and others are saying the same thing.
Not to belabor this point, but when the word "source" is mentioned regarding the Seahawks draft plan it really matters which type of source they are.
1) Source from inside of VMAC with actual knowledge of our draft board or specific prospect evaluations
2) Other - the same public information that any of us currently has
Pretty much everybody posting publicly about the Seahawks is in that secondary category right now, whether they work for a major network, have their own blog, or are just a random fan who had a 20 second chat with a co-worker about whether the Hawks might take Bijan. Saying you have a source may come across in hundreds of different ways, but at the end of the day it's just a way of padding out your opinion with an appeal to authority.
That's part of the fun of being a fan though is having an opinion and trying to guess right. None of us know anything and if we guess right we can rub it in and if we guess wrong we will ignore it lol
I completely agree with this, but that's why I'm mildly annoyed when the public commentators you cite can't just back their own opinions honestly. "I've been hearing from sources that the Seahawks..." is either fabricated if they are claiming to have a team source, or meaningless if they are claiming an "other" source. The people you mention love to refer to sources instead of justifying their own opinions and so they are a negative addition to the discussion in my view.