Venter led Saracens to the Premiership play-off finals last season
Saracens' director of rugby Brendan Venter is to step down and return to his native South Africa at the start of next year.
Chairman Nigel Wray said Venter, who joined Sarries in 2009, will become technical director from 9 January.
"Brendan, Anneme and their children are returning to South Africa in January for family reasons," he explained.
First-team coach Mark McCall will take over Venter's role, while backs coach Andy Farrell will replace McCall.
"As a club very much based on family values, we respect their decision and wish them well," Wray added.
"Mark and Andy will take over the day-to-day running of the team, but Brendan will remain an integral part of the club, as technical director, making frequent visits to north London."
Venter's 16-month spell at Sarries has been as successful as it has controversial.
The former centre led the north London club to the play-off finals last year, where they were beaten by Leicester.
But a series of disciplinary issues have tarnished his Saracens career.
Then he received a 14-week ban, later reduced to 10 weeks, for "making provocative and inappropriate gestures" during another match with Leicester on 8 May.
Venter, who is a qualified medical doctor, was reprimanded for saying the ERC had not prepared its referees well enough to deal with new interpretations of the breakdown area.
We would like to thank Brendan for his outstanding contribution through the past two seasons, establishing a culture of honesty, discipline and work ethic
Saracens chairman Nigel Wray
After watching his side lose their Heineken Cup Pool Two encounter with Leinster at Wembley on 16 October, he told the press: "Before the Heineken Cup began, I asked if we would have a conference so all the officials from abroad were in tune as to the new interpretations of the laws.
"Instead, we got some European referees in the Premiership, but there is a real danger that if we don't take action going into a World Cup year, the game of rugby is going to die, be killed stone dead, because the public won't come to watch."
Wray moved to praise the former London Irish coach's influence at Saracens, and looked forward to Irishman McMall's promotion to director of rugby.
"We would like to thank Brendan for his outstanding contribution through the past two seasons, establishing a culture of honesty, discipline and work ethic that is now enshrined within the DNA of our club, and we look forward to his continuing involvement in the months and years to come," he added.
"Equally, we are delighted to appoint Mark McCall as director of rugby.
"He has played a crucial role in our recent success and, with his high-level experience at Ulster and Castres, is ideally equipped to maintain this progress.
"He will lead an outstanding group of coaches, including Andy Farrell, Paul Gustard, Alex Sanderson and Dan Vickers, and Scott Murphy as high performance director."
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