Ex-Lyon boss Paul le Guen arrived at Rangers with big reputation in 2006 . He was sacked after just one season and replaced by former Celtic striker Ally McCoist.
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 .