FLounder
Think Positive and life will be Positive.
Really interesting read.
While the spread looks to use space and options to attack their opponent rather than size up front, the 8-3 defense eschews trying to "line up sound and make 'em beat us" and instead looks to win on a mental level through disguise, dictation, and disruption.
It's ultimately a 3-4 defense in terms of positions on the field and pre-snap alignment, but instead of matching power up front with two-gapping DL, the 8-3 is defined by the eight stand-up players will shift around to assume different roles. It's descended from the 3-3-5 but uses more 3-4 alignments while bringing a similar philosophy of flexibility. It's the counter-point to the spread, using space and options to present conflicts and dilemmas to force the offense to play defense.