I can't blame the talking heads too much. They are paid to give their opinions, so when someone comes and asks them about something they really don't know anything about, they are put in a bad spot. It's literally their job to have something to say. The best, and the unfortunately rare, answer gracefully, noting their lack of inside information, coming up with example where they do have first hand knowledge for comparison, then noting again it may not apply. The worst, and most common, charge ahead with a simple "I don't follow the team day to day" then act like they know what's going on, perhaps adding "I talked with a couple guys who used to play the game" as if lack of information about a situation can become wisdom through a game of telephone.
Really though it's not their fault. Gotta get paid! It's more the fault of the person asking the question. The talking head hosting the show, not coming onto it. If your guest starts by saying "well I don't know what's going on there", you should really stop the answer right there. There's nothing to be gained from it but a random guys opinion. Does it have worth because he's a sports talking head? Maybe a tiny bit, but you have access to several people whose responses have much more validity. Go get them on your show and ask this guy about something he knows about.
And don't get me started on newspaper or internet writers weighing in. They could actively avoid trying to give responses to a situation they admittedly are unfamiliar with and they have time to craft their take, if they feel they must have one, in a way to frame it correctly. No excuse for idiocy here.
Anyway this is just a long way of saying, when it comes to the Nats, it's up to us to filter the nonsense out. The media isn't going to do it for us. Read the beat writers, other guys you know are following the team day to day, or had been recently. This doesn't mean they are right, some guys quit thinking critically a long time ago, but it's by far the best place to start. Supplement with national baseball guys who you respect, who may not be following the team day to day but follow the overall sport daily and have a sense of the big picture. These guys may also have some inside information beat guys don't have. And finally read some team bloggers you like. They're the anti-national guys. No inside information, no big picture, but they see the day to day dealing from the outside looking in and sometimes that can give a fresh perspective. Obviously there are cranks here but hopefully you can weed them out. That's it. Take all those perspectives and pieces, read them, take some time to digest them, and you probably have the closest approximation at what the actual situation is.
That's all I've got today. Too tired from reading terrible points of view on this team, both terrible because they are thought and written by guys who have no idea what they are talking about and terrible because they are written by guys that do and the team is terrible.