Getting a bunch of cast-offs to play above their pay-grade isn't something you can count on, but it's easier for them to do so with a bunch of studs Thomas, Chancellor and Sherman on the field at the same time.
Lebeau's scheme works; when you have he players to run it effectively. Need a big NT in there next year and another CB. That plus a year of seasoning for Jones, Thomas, Williams (Spence?) and things will look much better.
I absolutely love Heyward this year and think Worilds needs to be resigned. Add a big NT and watch the sack/pressure numbers go up. Then the CB's can start to play more press coverage.