Complex sentence: Former English international Terry Butcher was signed as their new coach for the 2006--07 season, however it was regarded as an overall failure, with Sydney playing poor football, despite the signing of Alex Brosque and Benito Carbone as a Guest player.
Split into simpler sentences: Former English international Terry Butcher was signed as their new coach for the 2006--07 season. However it was regarded as an overall failure, with Sydney playing poor football despite the signing of Alex Brosque and Benito Carbone as a Guest player.