▁he ▁played ▁one ▁match ▁for ▁the ▁under - 2 1 ▁German ▁national ▁football ▁team . ▁ ▁Co aching ▁career ▁Ba umann ▁started ▁his ▁co aching ▁career ▁at ▁Rot - We iß ▁Er furt ▁when ▁he ▁was ▁h ired ▁on ▁ 1 9 ▁February ▁ 2 0 0 8 . ▁His ▁first ▁match ▁as ▁head ▁coach ▁was ▁a ▁ 5 – 0 ▁win ▁against ▁the ▁reserve ▁team ▁of ▁V f L ▁Wolf s burg ▁on ▁ 2 3 ▁February ▁ 2 0 0 8 . ▁He ▁finished ▁the ▁ 2 0 0 7 – 0 8 ▁season ▁in ▁sevent h ▁place ▁and ▁promotion ▁to ▁the ▁first ▁ever ▁ 3 . ▁Liga ▁season . ▁Ba umann ▁was ▁s ack ed ▁on ▁ 2 8 ▁April ▁ 2 0 0 9 , ▁three ▁days ▁after ▁Rot - We iß ▁Er furt ▁lost ▁to ▁K ick ers ▁Em den ▁ 1 – 0 . ▁ ▁His ▁next ▁job ▁was ▁at ▁V f L ▁Os nab r ück ▁when ▁he ▁was ▁appointed ▁on ▁ 1 2 ▁June ▁ 2 0 0 9 . ▁His ▁first ▁match ▁as ▁head ▁coach ▁of ▁Os nab r ück ▁was ▁a ▁ 1 – 0 ▁loss ▁to ▁E int racht ▁Braun sch weig . ▁He ▁was ▁s ack ed ▁on ▁ 2 1 ▁March ▁ 2 0 1 1 ▁after ▁losing ▁ 3 – 1 ▁to ▁A lem ann ia ▁A achen . ▁ ▁Then ▁on ▁ 2 2 ▁February ▁ 2 0 1 2 , ▁Erz geb ir ge ▁A ue ▁h