Complex sentence: After Ridl retired several seasons later, Grgurich was named Head Coach at Pitt for the 1975-1976 season and after two rebuilding seasons coached Pitt to 3 consecutive winning seasons in 5 total season as Head Coach at Pitt and a post season bid in 1980.
Split into simpler sentences: After Ridl retired several seasons later, Grgurich was named head coach at Pitt for the 1975-1976 season. After two rebuilding seasons he coached Pitt to 3 consecutive winning seasons in his 5 total seasons there, and a post season bid in 1980.