By John Mullin CSNChicago.com Bears Insider Roy Williams was inserted into the starting lineup, replacing Johnny Knox for a variety of reasons. But Williams admits he is not in shape at this point, and that has been increasingly apparent watching the veteran go through practice at sometimes less than peak speed. Williams acknowledged that the biggest thing for him to work on at this point is "my conditioning. Getting my wind right. You have to be able to run in this offense. Run all day long."