Simplify the following text for a Grade 12 native English-speaking person.
Original: Even after the end of the socialist-liberal coalition in October 1982 , Sarrazin remained in the Finance Ministry , where he was director of several units , including ( from 1989 to 1990 ) the `` Innerdeutsche Beziehungen , '' which prepared the German monetary , economic and social union .
Simplified: Even after the end of the socialist-liberal coalition in October 1982 , Sarrazin remained in the Finance Ministry . There he was director of several units , including ( from 1989 to 1990 ) the `` Innerdeutsche Beziehungen '' , which the German monetary , economic and social union prepared .