"If he finishes points on, near, or inside the baseline, then generally things are going pretty well, " said Paul Annacone, Federer's coach.

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Tony Roche (Lendl, Rafter) was only interested in a part-time role with Roger Federer, while Paul Annacone (Sampras) has a similar arrangement with Henman.

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While Brad Gilbert, Paul Annacone and Peter Lundgren have joined the LTA revolution on the men's side, plenty of experienced coaches have been brought in to help the women.

BBC: Carl Maes

Much has been made of the impact Ivan Lendl has had on Murray since becoming his coach in December 2011, but Bollettieri suggested Paul Annacone, who began working with Federer in August 2010, also deserves credit for persuading the four-time Laureus World Sportsman of the Year to adopt a more aggressive approach.

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