While coach of Borussia, the team roster included players such as Lothar Emmerich, Sigfried Held and Reinhard Libuda.
Murach led Borussia with a 2–1 home victory over Hertha BSC in the semi-finals of the DFB-Pokal, but in the subsequent Easter Tournament in Vienna, the team faced two consecutive defeats.
Murach then coached Eintracht Gelsenkirchen, which had fallen to the third division the previous season due to point deductions for the use of an unregistered player.
On the 21st match day of the 1972–73 season, Murach was hired by the Bundesliga side Rot-Weiß Oberhausen and began coaching there in addition to his duties at Eintracht Gelsenkirchen.
The following season, he remained with Rot-Weiß Oberhausen and led the club to second place in the Regionalliga West SG Wattenscheid 09, which entitled them to participate in the Bundesliga promotion round.
They faced such a bad financial situation at that time that Murach obtained a legal attachment order to protect his salary.