Volusia County Public Library discussion

Mattie says that she is looking for a man with "true grit" to avenge her father's death. When given a choice of marshals, including one who is "straight as a string" as opposed to Rooster, who is the "meanest," why does she choose Rooster? How do you think she would define the quality of "true grit"? -- The National Endowment for the Arts website