Haha. That's me from back in the day. There's some on here from the old pedia days......
Speed kills. Pure and simple. It covers up a lot if deficiencies. Out of position on coverage, speed allows this to be negated. Holes don't have to be open as long, tackles can kick out faster etc....Blitzes get home more often than not etc....
Bobby Bowden was the one who helped TO with the mystery of speed. IIRC, we traded strength training for the "secret". Both guys respected each other tremendously. Read an article that Booby turned TO onto the Florida speed so he'd steal guys away form Miami and UF and Bobby wouldnt have to play them every year.
McBride sad they recruited speed, tackling and then size on the D.....If a guy couldn't run, he wasn't recruited. Safeties to LB, LB to DE etc.....speed everywhere at every position. It worked then and works now.
IMO, in or current 3-4, the OLB have gotta be able to cover a lot of ground and quickly. Not just vertically, but laterally as well. We are missing this. Same with an "elite" pass rusher. Elite really is a nice way to say fast. Look at Super D in 2003....Dude was a LB moved to DE (passing) who tee'd off on QB's weekly...(Linebacker Demorrio Williams played a dominant role on the Blackshirt defense by finishing second on the team in total tackles, while leading the Huskers in sacks, tackles for loss, quarterback hurries and fumble recoveries, setting the tone for one of the nation's top defenses.)
Like you, not sure if it's the "silver bullet", but we look slower than the current crop of elite teams and its reflected in our W-L record. It definitely wouldn't hurt us to get more speed.