Three key issues as Celtic confirm O'Neill as permanent boss

Three key issues as Celtic confirm O'Neill as permanent bossImage source, SNSImage caption, Martin O'Neill has plenty in his in-tray as he begins his second spell as Celtic's permanent managerByNick McPheatBBC Sport ScotlandPublished1 minute agoMore than five months since the sacking of Wilfried Nancy, Celtic fans finally have confirmation of their club's new manager.It is the man who picked up the pieces not once but twice last season to guide the team to the Scottish Premiership title and the Scottish Cup.Martin O'Neill cemented his status as a legendary figure at Parkhead by ending a tumultuous campaign with a league and cup double.Now the 74-year-old will be expected to build on that success in a full season in charge after being appointed permanent boss - but what are the key issues facing him and the club?Improving style of playIn a chaotic campaign that brought two managerial exits, two caretaker returns from O'Neill, and serious unrest between the fans and the club, Celtic's season quickly became about simply getting by.They ultimately achieved that while winning, and in the end winning big as the double was claimed with a nine-match winning streak.Fans will not dwell on the unconvincing performances when they look back at the second-half goals that clinched glory in the title decider against Hearts.Next term, however, the support will want to see more substance.A lot of that will depend on O'Neill and his staff having a full pre-season with the squad, as well as improvements to a heavily criticised transfer policy.Addressing recruitment goes beyond the manager, with changes expected in that department after several windows of underwhelming incomings.Speculation also surrounds a number of Celtic players, with exits expected for Daizen Maeda, Arne Engels and Reo Hatate.Making mark in EuropeImage source, Getty ImagesImage caption, Celtic will find out their Champions League play-off opponents at the beginning of AugustBe...