By Jonathan Overend BBC Five Live tennis correspondent in Hamburg

Murray split with coach Mark Petchey in April

British number one Andy Murray hopes to appoint a coach who has guided players to Grand Slam titles.

Murray has been working on his own since splitting from Mark Petchey last month but is determined not to be rushed into a decision.

However, Tim Henman's former coach Larry Stefanki is not in the running.

"We haven't just been speaking to Larry, there have been others we've approached and been speaking to," Murray confirmed to BBC Sport.

"We've come up with a short-list of guys I'd like to work with, my manager will make contact and see if they're up for it and I'll make the decision myself."

The Californian-based Stefanki was on the short-list but is set to start a part-time arrangement with the Chilean Fernando Gonzalez.

One of the problems of the last few weeks is that I've gone on court without a game plan Andy Murray

It is understood Stefanki was not necessarily the number one choice - despite speaking to Murray's agent Patricio Apey on two occasions before last week's tournament in Rome - just one of a number of possible candidates.

Murray, who beat Gael Monfils in Hamburg on Tuesday, admits that it will be difficult to find someone with the right credentials who is also willing to go back on the tour for 25 weeks a year.

It is an arduous - if potentially rewarding - existence and many of the well-known coaches of the past few decades feel they have served their time on the road.

For example, Brad Gilbert (Agassi, Roddick) has a TV contract in the USA and Bob Brett (Becker, Ivanesevic) runs his own academy in Italy.

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.

At this crucial development stage of his career, Murray needs a full-time coach rather than a part-time advisor, however high-profile.

The most intriguing name continually flying around is that of Larri Passos, who won Grand Slams with Gustavo Kuerten and has watched many Murray matches over the past year.

But it is unclear whether he can he be persuaded to return to the same hotels, practice courts and tournaments as those he visited for 15 years with Kuerten.

So for now Murray is working out his own tactics and coaching himself and, at last, he seems to be enjoying it.

"One of the problems of the last few weeks is that I've gone on court without a game plan," admitted Murray.

"I haven't really had my own time alone to think about what I was going to do.

"But I did that last night [ahead of the Monfils match]. I listened to my ipod before the match, like I was doing last summer, and really got myself in the zone.

"I was much more fired up and concentrated than I had been in the last few weeks. I think I got my tactics right."