dude. First, try to comprehend what was being discussed. Once you do that, you can talk intelligently about the subject matter. The point in question was whether McCombs was likely to get "unseated" by a different running back (someone even mentioned to use him as a "third down back"). Then, it was brought up that the best example of someone losing his starter role was Donald Brown, who had "lost" his starter spot to Andre Dixon. This was just not true. They shared the role all year long, as evidenced by the numbers, which you have failed to address (i.e., the last five friggin' games!).
If you want to say that he "lost" his running role for three games out of a thirteen game season (as if that would even be relevant to the original McCombs discussion), then go right ahead. But don't give me any crap about an idea that someone didn't share the running responsibility after having nearly identical running numbers to his counterpart (and nearly identical carries and yards to his own previous year of running), which was the original point. Got it, now? So I'll remain standing if you don't mind...