This was Ireland's 10th successive Test victory, equalling their all-time record, and definitely ranking among their most satisfying.
But Yousuf admitted his team faced a huge task to prevent a record 12th successive Test defeat at the hands of Australia.
Ireland's first match at the rebuilt Lansdowne Road ended in frustration with a fourth successive test defeat, as South Africa overpowered the home team.
Clarke, who averaged 106.33 in Tests last year, ended a run of 92 successive Test appearances by missing the final game in India.
Australia's opener Chris Rogers earlier fell five runs short of a century – a record seventh successive Test score of 50-plus without registering three figures – but admitted England are now in control of the match.
Kaino has duly returned, as part of an All Blacks team shorn of Richie McCaw and Dan Carter but one that is a World Cup richer and holds the record among major countries for successive Test wins in a row.
The National Assessment of Educational Progress, a comprehensive reading and math examination given to hundreds of thousands of students periodically since 1990, including in 2003 and last spring, was the first nationwide exam to allow a direct comparison between two successive test administrations since Mr. Bush signed the law in January 2002.
With 10 successive Test wins already behind them England believe the moment has come to bury their South African hoodoo and, with Courtney Lawes expected to be available for selection, are intent on making their presence felt physically from the outset.
Each successive test flight will bring both expected and unexpected technical challenges, and will teach us more about how to fly this experimental aircraft".
Ireland playing World Cup-winning rugby... Ireland's win over England was their 10th successive Test victory and was another combination of a clear strategy, executed brilliantly.
