Three vets have resigned from Godolphin as part of the reshuffle that has resulted in long-serving racing manager Simon Crisford leaving his role to become Sheikh Mohammed's global racing adviser.

Crisford's shock departure on Monday evening came less than a fortnight after the publication of a report by Lord Stevens, which was critical of Godolphin and other parts of Sheikh Mohammed's equine operations but concluded former trainer Mahmood Al Zarooni acted alone in the doping scandal that engulfed the stable last year.

Godolphin have subsequently announced a number of personnel changes, which include three vets leaving the operation.

James MacEwan, the managing director of Sheikh Mohammed's horse transport business, has also left his post.

A statement confirming the changes was released on Tuesday, but it did not name the vets or say whether they were based in Dubai or Newmarket.

Charlie Appleby, who replaced Al Zarooni, and fellow trainer Saeed Bin Suroor will act as spokesmen for their stables as Crisford will not be replaced.

A new board of directors will be formed, while Hugh Anderson becomes managing director of the Godolphin Racing Office "overseeing services in support of the trainers".

The statement said: "The changes are intended to streamline and improve management oversight, safeguard horse welfare and ensure compliance with all relevant laws and regulations.

"They re-emphasise the role of trainers as the individuals responsible for their particular racing stables and make clear that they hold the delegated authority of the owner as defined by the condition of their licence."