What I have found remarkable is the listed workload from 30 years ago when caucasian sprinters were competitive.
There were some long discussions in the old Italian Sprint Training thread, with the Italians using VERY large amounts of speed endurance training and Charlie talking about the Italians using 2:1 recovery instead of 3:1 like him because the training was so intense. Remember that Mennea held the WR for 17 years and 30 years later, only 7 black athletes have matched his 200m time.
There have been similar discussions about Borzov, and in at least one paper Borzov himself claimed to have trained (open to debate perhaps) with a higher training workload than any other sprinter of his day. Charlie has also talked about the work of some of the East Germans and also Block.
You can argue that these caucasians were training with too much HI volume (Charlie did claim this with respect to Block), but I find these discussions even more relevant now considering the apparent work volumes of the Jamaicans (particularly MVP).
In recent years, there have been caucasian athletes relatively successful in 60m (Collio recently) emphasizing power, and 200-400m emphasizing SE (Kenderis, and also Wariner and several others in the 400), but there seems to be a region where MaxV is more significant in 100/200 that blacks have significantly surpassed caucasians.
You could make the point that caucasians might be more successful with more emphasis on power and SE, and correspondingly less emphasis on MaxV. Franno already seems to be doing this, and I wonder if perhaps caucasians might adapt better to what he’s doing, more or less like Wariner adapted even better to Michael Johnson was doing.