Link?
The stuff I’ve read from Barry (in articles and on his forums) always supports running fast to become faster. His book just focused on the lifting part of his protocol. His other website, ASRspeed, focuses solely on fly sprints as the running training. Basically, he trains by lifting heavy (>85%) and running fast (>95%). Intensive tempo and overdistance work aren’t a part of his protocol. I know both he and Ken have a ton of respect for Charlie Francis and often reference him throughout the discussions. I believe the quote they often like to use from CF is something like, “Sprinting is specific to itself.”
As for distance training, I am completely clueless…