Bacterial cells aren't internally compartmentalized with membranes (like eukaryotes). This naturally leads to an image of a homogeneous interior, but bacterial cytoplasm isn't homogeneous. Case in point, the DNA is localized in the nucleoid. If the cell goes through the trouble of putting all its DNA in one spot, having RNA polymerases everywhere would be pretty wasteful (even counterproductive). So, is the more intuitive image of bacteria, with RNAPols everywhere, right? Or are they localized? If so, how?
If species matters, lets primarily talk E. coli.