Career
He was in charge at Sunderland for six seasons from 1889-1896. During this time, he led the club into the Football League. Watson moved to Liverpool in 1896, and enjoyed further success there until his death in 1915.
He therefore became the first manager to lead two different clubs to the League Championship.
There have been only three others since. Herbert Chapman, Brian Clough and Kenny Dalglish.
As manager = Sunderland (1889-1896) = Liverpool (1896–1915).