Hamburg, Aug 7 (DPA) Louis van Gaal, Felix Magath and Armin Veh are just some men starting a new challenge in Germany in an unprecedented merry-go-round on the Bundesliga coaching benches.

Eight of 18 top flight clubs have a new helmsman and three other coaches make their Bundesliga debut as the season kicks off Friday night when defending champions VfL Wolsburg take on VfB Stuttgart.

The Dutchman van Gaal replaces Juergen Klinsmann (and caretaker Jupp Henyckes) as mighty Bayern Munich chose authority over more experiments in the quest for domestic and international glory.

Magath decided to leave Wolfsburg for the Schalke 04 hot seat where he could become immortal with a first German title for the club since 1958.

Veh, meanwhile, replaces Magath (again), as the new Wolfsburg coach.

Leverkusen (Heynckes), Hamburg (Bruno Labbadia), Borussia Moenchengladbach (Michael Frontzeck), Eintracht Frankfurt (Michael Skibbe) and Mainz (Thomas Tuchel) have new coaches as well.

Zvonimir Soldo (Cologne), Robin Dutt (SC Freiburg) and Michael Oenning (Nuremberg) are the new faces in the Bundesliga.

After failing to add any silverware last season under Klinsmann, Munich picked van Gaal this time to steer the team in the right direction again.

Munich are the top title favourite and van Gaal is confident enough to seek more glory after previous success with Ajax Amsterdam, Barcelona and AZ Alkmaar.

'I have made history wherever I have been.