Klopp got Mainz 05 promoted to Bundesliga 2003-2004 season after taking charge in 2001( Experience). Won back to back Bundesliga against the mighty Bayern 2010-2011-2011-2012 with the youngest team to win the Bundesliga. Won German supercup in 2008 beating Bayern.
So got a team promoted, won league agaist Bayern, took Dortmund to CL Final equal win record in Bundesliga and points total
So thats pretty good CV and experience if you ask me.
Key here is how long he spent at mainz05 before taking a top job.
Also last team to win Bundesliga outside Bayern Klopps Bortmun