Complex sentence: With the pitches plumb and batsmen willing to hit him, Shackleton enjoyed little success and failed on his only chance of an Ashes tour, but he was already one of the best opening bowlers in county cricket.
Split into simpler sentences: With the pitches plumb and batsmen willing to hit him, Shackleton enjoyed little success. He failed on his only chance of an Ashes tour, but he was already one of the best opening bowlers in county cricket.