Okay so if Nicks went down but Barden was averaging 100 yards 2 td per game for 5 games would you bench Nicks? No you wouldn't. Why wouldn't you? Because you know from a much larger sample size that Nicks is far better.
How do I know Kenny Phillips is better? Kenny Phillips has been playing at a high level for what now, 4, 5 years? Stevie Brown was a bench player for his career and that's not a coincidence.
Brown has indeed been play extremely well and I like him but that doesn't mean he's better than Phillips. Have you ever thought that maybe since Phillips isn't there teams are throwing towards Brown a whole lot more due to no dear of him leading to more opportunities for Brown than Phillips?
I'll take 4-5 years of solid play over 4-5 games of very good play.