Question: who coached the dallas cowboys after jimmy johnson
[{'answer': 'Barry Switzer', 'provenance': [{'wikipedia_id': '16315920', 'title': 'List of Dallas Cowboys head coaches', 'start_paragraph_id': 2, 'start_character': 196, 'end_paragraph_id': 2, 'end_character': 209, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]