I was going to write a post about this, but I just ended up putting it on Storify because I tweeted it and I'm lazy.
As well, I learned in journalism school that you should get two sources on every piece of news. Do sports reporters do this now? No, of course not.
Again, I don't think there's anything wrong with reporting rumors or agent/team fed propaganda, as it feeds the machine and people like it. But I don't think you can do that and then cry journalistic integrity.
I want to be clear here that I'm not talking about tweeting actual news. Trades, even if you discover a pick this morning, etc... but tweeting out the pick just before Goodell announces it isn't news.
This is obviously because then I'd have to unfollow anyone who retweeted that news. It's not how Twitter works. Much like the world, you aren't immune to the news just because you don't hear it from the original source.