Talking about the 4-4

Brett the 44 Split plays with 2 three techniques with 2 "A" gap backers. the 44 Stack gives you 2 2 techniques with backers stacked behind them. Coach CAmpbell

The split 4 is the defense of choose when running the inside veer, load and midline because it sets the blocking schemes well. The stack tends to stretch so I like running against the split better. Coach CAmpbell

Sammy yes but you will find when running the option game that this is not a good front to be in vs the option game so you start to see it vary and fronts change to accommadate the option game. So expect the unexpected with the option game. Coach CAmpbell

Gato - the eagled front is know as an under front and or 13 tight. The 44 is known usually as a stack defense. Coach Campbell