In a close defeat against Rajasthan Royals, the Delhi Capitals did many avoidable mistakes that could have turned the table on the match result. Veteran off-spinner R Ashwin was not given from his four-over quota as the Rishabh skipper Pant brought seamer Marcus Stoinis instead. And, that one-over switch-out made all the difference in the game, believed the head coach Ricky Ponting.