Swiss legend Federer has roped in former world no. 1 Stefan Edberg while the Serbian has engaged former German great Boris Becker as his coach.
"I am very interested to see how this is going to work. I will be interested to see if Federer and (Novak) Djokovic are going to play a little bit differently," said the 39-year-old former British number one.
Former world number 4 Henman, who was here to conduct the HSBC-Road to Wimbledon junior tennis programme, said engaging a top former player had worked well with his UK compatriot and reigning Wimbledon men's singles champion Andy Murray.
According to Henman, who conducted one-day junior programme with All England Club's chief coach Dan Bloxham, it could be about formulating a strategy against a particular opponent.
"It's not about Edberg, Becker teaching new shots to Federer and Djokovic. It's all about strategy and maybe game style against a particular opponent or may be to do something with the preparation or something mentally on the court," he said.
