With NFL free agency 2013 upon us, we look back at each team's best and worst free-agent signings of the last five years. CLEVELAND, Ohio - The best and worst free agent signings of the last five years for each NFL team: AFC Baltimore Ravens Best: FB Vonta Leach (2011) was All-Pro in both seasons with Ravens and considered best fullback in the league. Worst: CB Domonique Foxworth (2009) signed four-year deal, fought injuries and finished with four INTs in 18 games before retiring. Buffalo Bills Best: TE Scott Chandler (2010) came to ... Read More