You can still put Richardson on your squad since he's on the final roster (even if it's practice squad).
And pestilence, I have the same problem with the kicker. I think it's too late to re-do our drafts, and there's no way to pick one up. Unless people can come up with a reasonable solution, I think you and I are going with Scrubby McScrub as our kicker this year.
In the final seven games of the 2013 season, the Chiefs averaged 34.6 points per game, scored 38 points or more 4 times, and went 2-5. The NFL has ruined the sport.