Graeme Rogerson has hinted he may be about to step down as owner Lloyd Williams' trainer after the pair achieved their main goal by winning the Melbourne Cup with Efficient.

Williams and Rogerson have been friends and business associates for more than 40 years but the trans-Tasman trainer has a full plate with stables to oversee in Sydney and New Zealand, along with Dormello Stud and a new trotting operation.

Rogerson stressed nothing had been decided but admitted he would take some time out to contemplate his next move in the coming weeks.

"I've got a lot of thinking to do in the next few weeks," Rogerson said.

"I'm on the downhill run now. I've still got Sydney and New Zealand, I've got the stud and the trotting as well. I've got a lot on my mind.

"The Williams family are great friends of mine.

"We'll go through the next couple of weeks and see what my future holds.

"I'll be back for the Sandown Classic meeting and I'll see from there."

"There's only so many hours in the day."

Williams is a hands-on owner and the set-up of his tea, with Rogerson his registered trainer and John Sadler his assistant trainer, has been the subject of a stewards' inquiry but the structure remains.

When the question was posed on Melbourne radio on Wednesday morning, Williams made it as clear as he could.

"Graeme Rogerson has been a part of my life for a long period of time - he sold me a horse in 1974," Williams said.

"We've got a structure there - we've got a couple of chief executives - John Sadler and Graeme Rogerson and a lot of general managers and a lot of assistant managers.

"We actually have a management structure.

"And that's the way it works, the way it has to work to run a successful racing business."

Rogerson is due to return to New Zealand on Wednesday night and has a big week in store with runners at the major gallop and harness meetings there this weekend.

He is also closing in on Dave O'Sullivan's training record for most winners in New Zealand which stands at 1877.

"I think I'm about 10 wins away," Rogerson said.

Efficient provided Rogerson with his first Melbourne Cup although he almost tasted success with 1985 winner What A Nuisance, who he had for the early part of his career in New Zealand before selling him to Williams.

Tuesday's Cup victory was Williams' third following the victories by What A Nuisance and Just A Dash four years earlier.

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