I was thinking about this last night.
I think when the team goes 4-3, we see a lot of Ellis and Glover.
When they go 3-4, that is when they get the breaks and we see guys like Spears, Fergi and Coleman up front. Use the 3-4 as the change of pace and rotation system.
The thing that bothers me is that Fergi is on the field all the time. He is gonna earn that signing bonus!