The local sources in STL stink. You are going to get the best info/rumors/word on the street someplace like this board.
Besides being focused ont he Rams (unlike the local media) the fans on this board tend to post national media stories fairly fast. If there is a rumor of any wieght it will appear on this board within 24hrs or less (the group here is good at reposting stories and rumors).
I wish the STL media was better about this, but the death of newspapers (or looming in the case of the PD) and the growth of the blogger media has resulted in the local media reducing their resources and focusing those resources in specific areas. Right now the STL media interst level of sports reporting would likely be:
1a. new stadium
1b. cards preseason
2. blues closing in on post season
3. nfl offseason
and there is a HUGE drop off between 1b and 2, add in that usually NCAA basketball would be 2 (but this year is down locally).
I wish I could say that local sources would give you something more. Honestly, I get most (not all) of my trade and draft info here and the national media. I will say that the interest in the new stadium means lots of info on that comes from local sources in STL.
I should note that I no longer live in STL, but I podcast local STL radio and speak several times a week with friends there with season tickets (and they tend to ask me what is going on...which is kinda sad...but the local media is that bad and they know it).
Having typed all that, I realized I was little help at all