Joel D. Collieris an American former football coach who was the head coach of the Buffalo Bills of the American Football Leaguefrom 1966 through part of 1968, compiling a 13–16–1 record... (wikipedia)
We just wanted to make the kitchen as large as we could. We were also able to make use of all those big windows. Now the light pours in into the breakfast nook and the view now looks out toward the pool and the pretty cedar trees.
Variety is what the 3-4 can give you. You can play the 3-4 without having superstars, so to speak, in the defensive line.
At the time we didn't put another linebacker in. We took one of the defensive linemen off the line, stood him up and went into the three-man front that way. We did it in obvious passing situations, long-yardage situations or at the end of the game when we were protecting a lead.
Eventually, with so many doing it, it will (lose its punch). It goes in cycles. I'm pretty sure teams will start getting better attacking the 3-4.
In the college ranks at that time there were a high percentage of teams playing the 3-4, so consequently, the type of players coming out were suited to the 3-4.