First off, are you saying Felix Jones wasn't drafted in your league? I would think he is a Round 6 or 7 value...
Anyway, to your team. I am not a fan of having a backup QB, TE, D/ST, or K. You had a backup TE (Great job picking up Felix Jones is he wasn't drafted), but now you have a good backup QB. You still lack great RB depth, I would pick up another in a trade for Bradford. There's two ways I would do this.
You can wait it out, and see if he does well. When he's going above expected, you can trade for better guys than you could originally. However, if he doesn't perform, then you are in deep trouble. You are holding onto a QB no one wants, and you'll end up dropping him.
The idea I like better is trading him away already. You could get guys like Ryan Williams, Mike Tolbert (great value here, lots of redzone touches), James Starks, and Ryan Torian. This is the option I like the most. I would recomend trying to trade for Tolbert, he could really get you a consistant 8 point games, (1 TD, 20 YDS), and even get a big 16 point game (2 TD, 40 YDS). The Chargers give him his redzone touches.
Great job drafting!
Draft September 2nd! Last Year 2nd Place 9-4-1 in regular season