From experience, I've seen many coaches be good at one level and terrible at another. I've even seen some coaches good in a system (country or team) and terrible in another at the same high performance level, the environment is extremely important. some coaches spoon feed, some are tough love go out and hammer 'till you spit blood- works for some athletes, not for others.
Kenya, IMHO, needs a training camp system coordinated just like Ethiopia, so to does the US. Renato talks about young Kenyan talent at 12 years old running with 20 year olds slamming intervals all day. A lot of reports saying the kids are training way too much in the high intensity (intervals) these days since their hero's (adults) are doing that. The problem is the were not doing that when they were young, as Renato explained, they were building their floors (base). some have 2-3 floors to build others have 30 floors over 10-12 years to build a base. The WR 10 years ago was ONLY 12:5X. That is a Grand Prix top 5 performance last season, times a changing.
It's a similar problem in the US. There is no high school link to the college the athlete goes to. The major college power houses should be in contact with the high school talent at least 2 years before they graduate. Or have 20-50 high schools matched with 2-5 colleges, so that there is continuity of communication and training. This I run 5 times a week 30 miles to doing doubles and 100 miles, makes no physiological sense. Do the college coaches really know the full backgrouns of the athletes in terms of their training intensity especially or their basic weekly mileage and running times?
Ethiopia is doing a good planned job of having sattelite talent come ready for their major national training team. The coaches must learn a lot from the top down. That also creates a talent pool of coaches.
If Kenya was as organized as Ethiopia is, that would be the end of distance running for other nations, far too much talent in Kenya.