I think he thought he had taken Rangers as far as he could. If he lost the league this season then his stock would have plummeted. We had been stuttering at times under his leadership and an opportunity had come to go to an underperforming team. I think it is a combination of him bottling it due to substandard performances but scraping the points at times, being closer to family, more money and being able to raise his stock by bettering an underperforming team with financial resources for improvement.