Interview with Sutter here
One of the things he discusses is that the CIA reveal was planned at the beginning, there were hints in there, but he edited them out in post, because he was afraid he'd give it away. . . kinda like the exact opposite of Dexter right now.
It makes sense going back, the fact that it was white guys that kidnapped Tara, the fact that the cartel showed up so quickly at the cabin when Jax and Opie got caught, the fact that the cartel was so quick to spot the tail on SOA at the motorcycle rally.
Also, the one thing I really like about Sutter is how completely open he is about the whole process. In response to adding new series regulars (I think it was in reference to an earlier question about how much he enjoyed Rockmond Dunbar's work) he said it wouldn't happen because series regulars get paid a lot and it makes the show too expensive, so you just call them 'special guest star' for the whole season. And here he talks about why he couldn't make the finale a 2-hour special, because everybody gets paid at a special rate if it's 'long-form' TV. Ultimately stating that breaking the finale into a 2-part episode was not the right way to do it. I just appreciate the he admits there's a lot more that goes into creating a show than him writing it. He's got a whole crew of union employees to get satisfied, the TV network has to be happy with it, there's a lot of people that have hands in the creation, but he has to deal with the fallout.
Plus, one subject he delves into time and time again is the reality of instant feedback and the criticism online, which I've always felt hurts the creative types, from Sutter to Sideshow. Anybody who creates stuff has to deal with people who love it saying it's the best thing ever to people who have no interest in it, saying it's the worst thing that's ever happened and everything in between. Getting comments from the peanut gallery has to be extremely stressful. I'm annoyed by 85% on this message board and I don't even create the stuff, so I can't imagine working on a project for 6 months to read "That's lame, PASS" "This will surely be on the GC list in a few months".