Thanks DMA, the thread started off very appropriate to my current needs but unfortunately turned into yet another Bolt debate, ah well the first 3 pages were interesting.
Question, providing I give them 1 session a week of acceleration/speed and 1 session of explosive med ball, would 1 session of intensive tempo e.g. 85-90% with appropriate recoveries (as opposed to 95-98% SE1 or SE) detract from their long term development ?