The Ospreys have parted company with head coach Sean Holley by mutual consent, the Welsh region announced on Wednesday morning.
Holley has been with the Ospreys since their inception in 2003, but following discussions with the board it was decided he should leave with immediate effect.
"Professional sport is a fast-moving and ever-changing environment and after nine years in office we feel that the time is now right to freshen things up and look at alternative options," Ospreys managing director Mike Cuddy said.
Holley has paid the price for the Ospreys' continued lack of success in the Heineken Cup. In 2010 they lost to Biarritz in the quarter-finals, but they have failed to qualify for the knockout stages since.
The RaboDirect Pro12 League has been a happier hunting ground, however, after they won the competition in 2010, the third of the region's three Celtic League titles. And while they also lie second in this season's table, it is their shortcomings in Europe that have proved decisive.
"Sean has been an excellent servant to the region over the last nine years and can be justifiably proud of all he has achieved with the Ospreys," said Cuddy.
"Sean is in agreement with us that he too is now in a position where he needs a new challenge.
"By moving on with immediate effect, it allows both him and the Ospreys to draw a clear line under the past and move forward with a fresh impetus.
"Sean will always be welcome at the Ospreys and we hope that he doesn't become a stranger.
"The region would have been a far worse place had he not spent the last nine years here making history."