Question: Johan Mjällby, is a Swedish football manager and former player, currently in charge as manager of Västerås SK, he  was most recently the assistant manager of which team, working alongside former Celtic team-mate and manager, Neil Francis Lennon, a Northern Irish football coach and former player, who is the head coach of Scottish Premiership club Hibernian?
Sentence (from "Mattias Rydberg"): Mattias played for the Sweden U19 squad during the 2003/04 season.
Relevant evidence: No