2) The Titans added some speed and athleticism at cornerback with third-round pick Blidi Wreh-Wilson, but did they do enough to fix their ailing secondary? The defense surrendered a league-worst 29.4 points per game last season while the secondary surrendered 55 passes of 20 yards or more, according to SI.com. The signings of strong safeties Bernard Pollard and George Wilson improve the unit, but this still might be an area of weakness.