It was worth the wait for Crystal Palace. After being denied their rightful place in the Europa League last season, Pierre Sage’s side made the perfect debut by brushing aside Lech Poznan with a victory that will take some of the heat off their new manager. The Frenchman has big shoes to fill in replacing Oliver Glasner after his predecessor won three trophies in 12 months and there had been some talk of disquiet behind the scenes following his decision to drop the teenager Jaydee Canvot at the…