insurance times fantasy

Fantasy-football player I do not like deep to make room for a player safe?
Currently I have Joseph Addai as my number one RB. Behind him, I have Marion Barber, Ahman Green and Thomas Jones. After seeing the fear of serious injury last week when Addai went down in open play feel who kicked me in the ass if I knew I had another opportunity to pick the Colts backup RB Kenton Keith. I've been trying all week to make a two for facing each share of green and Jones to release a roster spot for Keith but havent been able to. I do not want to have to set one of these free players with the possibility anyone could sign them and end up reaping the benefits, but at the same time I want to have someone pick Keith on the waiver wire after injury Addai. I do not want my whole list here so lets just say that removing any of my other players is not an option this week. I do not like Jones now in light of his injury status and injury Pennington? Or should I wait another week, hope Addai doesn't go down and try to make an exchange?
You may try to ask this question in fantasy football there section.Maybe someone cares.
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