I do believe some coaches have extensive data over the years and those patterns and trends found are valuable. I am not a believer in unpublished research by "eastern bloc" countries as their results are very clearly "published" at international meets. If the results are not statistically supra- normal why bother researching what they were doing and panning for secrets? Statistically the Russians did less than the UK in the sprints. I don't need Secret Research when the results are obvious. The key to improve the future is to review the past and to work backwards. Who is getting better results then their counterparts and why? I think the Caribbean secrets are nobody is trying to over think and people are just doing the fundamentals.