Complex sentence: His replacement Kenny Shiels was given a contract until the end of season 2014-2015, but failed to reverse the slide towards relegation, which became a reality on 12th April 2014 after a 2-0 away defeat by Alloa Athletic.
Split into simpler sentences: His replacement Kenny Shiels was given a contract until the end of season 2014-2014, but failed to reverse the slide towards relegation. That became a reality on 12th April 2014 after a 2-0 away defeat by Alloa Athletic.