Complex sentence: Boycott's eight seasons of captaincy were among Yorkshire's least successful, with the club failing to win any competitions and ranking low in the Championship table, in contrast to their one-time dominance of English cricket.
Split into simpler sentences: Boycott's eight seasons of captaincy were among Yorkshire's least successful. The club failed to win any competitions and ranked low in the Championship table, in contrast to their one-time dominance of English cricket.