Complex sentence: The scheme's flagship thoroughfare, The Avenue, struggled to attract stores and others who showed interest, such as Paul Smith, pulled out leading to the opening being delayed from 2008 to autumn 2010.
Split into simpler sentences: The scheme's flagship thoroughfare, The Avenue, struggled to attract stores and others who showed interest, such as Paul Smith, pulled out. The slow take-up led to the opening being delayed from 2008 to autumn 2010.