Fantasy stock watch: Can Jamaal Charles make an impact?

New Jacksonville Jaguars running back Jamaal Charles is a lot more popular in the fantasy football world today than he was a few days ago, but I still see it as unlikely he will play much of a role for his new team. Charles, once upon a time a magnificent talent for the Kansas City Chiefs before knee woes ruined things, signed with the needy Jaguars on Tuesday and could be in uniform this weekend. Fantasy managers in ESPN leagues acted quickly, making him one of the most added running backs within hours of the news.