Complex sentence: After the good action of that year, the board of directors of Valencia CF allowed him to coach for one more year but as the coach finished the league in fourth position, the directors hired another coach, Barinaga.
Split into simpler sentences: After the good action of that year, the board of directors of Valencia CF allowed him to coach for one more year. However, as the coach finished the league in fourth position, the directors hired another coach, Barinaga.