Following a remarkable run of seven major trophies in seven years, Leinsters title run came to an end following the 2013–14 season. The 2014–15 season saw a dip in form, with Leinster finishing in fifth place in the league and failing to make the play-offs. Fortunes in the newly formed Champions Cup were better, with the team reaching the semi-final where they were defeated in extra-time by eventual winners, Toulon. At the end of the season, Head Coach, Matt O'Connor, left the club by mutual consent with former club captain, Leo Cullen, being named as his replacement. Cullen then brought in ex-England coach Stuart Lancaster as senior coach at the start of the 2016–17 season, which saw a huge improvement from Leinster as well a big group of young players coming through. Despite playing brilliant rugby all season, Leinster failed to win any silverware, falling short in the Champions Cup semi-final to old rivals Clermont and shocked by the Scarlets in the Pro12 Semi-Final at the RDS. However, there was huge optimism amongst the players and supporters as they believed this was only the start of a new generation and perhaps another era of success.