NATHAN TINKLER'S $150 million investment in thoroughbred racing continues to be finetuned, with the owner-breeder yesterday axing trainers Jason Coyle and Gabrielle Englebrecht and racing manager Mark Webbey from the Patinack Farm team, reports Craig Young in the Sydney Morning Herald.His story states: ''I'm very, very disappointed the relationship isn't going to continue,'' Coyle said yesterday.Tinkler enticed Coyle to head his Warwick Farm stable, which opened earlier this year. In just on nin

NATHAN TINKLER'S $150 million investment in thoroughbred racing continues to be finetuned, with the owner-breeder yesterday axing trainers Jason Coyle and Gabrielle Englebrecht and racing manager Mark Webbey from the Patinack Farm team, reports Craig Young in the Sydney Morning Herald.

His story states: ''I'm very, very disappointed the relationship isn't going to continue,'' Coyle said yesterday.

Tinkler enticed Coyle to head his Warwick Farm stable, which opened earlier this year. In just on nine months, Coyle turned Tinkler's juvenile Onemorenomore into a $10 million colt when preparing it to win the group 1 Champagne Stakes. Linky Dink was another Tinkler juvenile Coyle and the team turned into a group 1 winner when the then two-year-old claimed the TJ Smith at the Brisbane winter carnival.

Coyle also finetuned another strapping colt, Trusting, to beat the older horses at weight-for-age in the Warwick Stakes. Trusting is a leading contender for tomorrow's Caulfield Guineas. Victory would make him a $20m Patinack Farm stallion.

Coyle relinquished the No.1 position at Warwick Farm just on four weeks ago when mining magnate Tinkler enticed third-generation trainer John Thompson to leave Bart Cummings. Thompson was set to train alongside Coyle but is now in charge of Trusting, Onemorenomore and about 80 other horses in training. Coyle set up at Randwick, with Tinkler sending him 14 horses. Coyle struck early for Tinkler when winning the Breeders Plate at Randwick last Saturday with Run For Wilson.

''The decision is a huge blow,'' Coyle said. ''I thought after last Saturday, winning the first two-year-old colts' race of the season, we were all on the same page. It would seem Patinack is going in another direction.''

Patinack general manager Rick Connolly did not return the Herald's calls last night.

Tinkler has parted ways with other staff. Victorian trainers Tony Noonan and Patrick Payne fell out with him and no longer train for the tyro, who heads the young rich list with an estimated fortune of $350 million.

Another to split with Tinkler was trainer Anthony Cummings. Racing's latest ''whale'' teamed with Cummings last year when he made a spectacular entry into the game.