By Tzvi Machlin The Carolina Panthers were pretty quiet in the first week of free agency other than trying and failing to land Deshaun Watson. But they hope to make a big splash with their current free agent pursuit. According to ESPN Panthers insider David Newton, the Panthers are pursuing free agent left tackle Duane Brown. The 36-year-old offensive tackle is coming off a five-year run with the Seattle Seahawks and made the Pro Bowl this past year. Brown has been a model of consistency over the past few years. Since 2018 he has missed only four games, earning All-Pro honors in the process. H…