Before ya’ll go posting links to previous threads please read through carefully.
I know that there is a rather strong opposition on this forum to performing calf strength development which isn’t drill or running based, however this conflicts with the point of view that training should be tailored around the athlete, not rules.
Although, as pointed out numerous times in this forum and in TFS manual, there is significantly less power generated at the ankle when compared to the hip, isometric calf stregth is vital for the realization of the power produced at the hip by the prime movers around the hip. There is no better illustration of this is than the posterier view of Ben starting at Seoul: Compared with the athlete in the lane next to him (semi-final) there is almost no eccentric action by the calf, the foot does not collapse at all, allowing Ben to utilize all the power generated at the hip for force production at the ground.
If for some reason an athlete, despite any amount of running, drills and plyometrics, does not develop this adequately, what do you do?
Do you seek an alternative means to develop the required strength?
or
Do you keep doing what you are doing and hope it will develop, because you dont do specific calf work?
Different athletes posess different attributes, and need to have training schedules designed accordingly, athletes with a longer foot will require more calf strength because the point where ground contact occurs is further forward from where the force generated by the hip is being placed through the ankle.
Before the issue of having a larger mass at the end of a lever is raised, think about athletes such as Sebastian Coe (63kg +185kg squat) and Jon Edwards (73kg with an alleged 150kg and a confirmed 140kg power clean) who have developed incredible power levels yet not blown out in bulk.
Donovan is an athlete who performed calf work (eccentrically) yet had smaller calves than Ben who apparently performed none.
I think its an issue which is out side the circle of though of most people on here, yet is a very important issue as far as sprint mechanics are concerned and needs to be carefully considered. After all, Charlie did not become the coach he is by blindly following or repeating what had been done by his predecessors.