Ex-Lyon boss Paul le Guen arrived at Rangers with big reputation in 2006 . Frenchman was sacked in January 2007 after a disastrous tenure at Champions League . Celtic chief Peter Lawwell has dismissed similarities with Ronny Deila after Norwegian recovered from a difficult start .
Ex-Lyon boss Paul le Guen arrived at Rangers with big reputation in 2006 . Frenchman was sacked in January 2007 after a disastrous tenure at Ibrox . Celtic chief Peter Lawwell has dismissed similarities with Ronny Deila after Norwegian recovered from a difficult start .