Complex sentence: In fact Warwick Rodwell has suggested that the "hopeless jumble" of the arcading at Earls Barton demonstrates it was mere ornament; he suggests that the design was based on timber framing but that the parts were then assembled wrongly.
Split into simpler sentences: In fact Warwick Rodwell has suggested that the "hopeless jumble" of the arcading at Earls Barton demonstrates it was mere ornament. Rodwell suggests that the design was based on timber framing but that the parts were then assembled wrongly.