Revamped Chelsea aim to draw a line under years of disappointment

LONDON, Aug 14 : Chelsea fans are hoping a radical close-season overhaul will end four years of underachievement since the club's takeover by American investors who are doubling down on their bid to bring the glory days back to Stamford Bridge.The appointment of former Bayer Leverkusen and Real Madrid coach Xabi Alonso as manager and a string of signings, including England midfielder Morgan Rogers from Aston Villa for a reported £117 million ($158.00 million) - a record for a British player - could put the Blues back among the Premier League title chasers.But a top-four finish is probably more realistic as a target for Chelsea who came 10th in the Premier League last season when they fired two coaches - Enzo Maresca and Liam Rosenior - and once again failed to find the stability their owne