Tennessee Titans: 7 building blocks for 2016
4. Delanie Walker
At 31, Walker may not be a long-term building block, be he's Tennessee's best offensive player outside of Mariota and has shown no sign of slowing down. The 10-year veteran led the Titans in receiving with 94 catches for 1,088 yards and six touchdowns. If Tennessee is to improve in 2016, Walker will once again play a big role.
5. Chance Warmack