Complex sentence: Thompson has been a Saturday columnist for "The Daily Telegraph" since 2011, and is Blogs Editor of the Telegraph Media Group, with responsibility for editing and commissioning blogs on politics, religion, finance and culture.
Split into simpler sentences: Thompson has been a Saturday columnist for "The Daily Telegraph" since 2011. He is also Blogs Editor of the Telegraph Media Group, with responsibility for editing and commissioning blogs on politics, religion, finance and culture.