Haven't stayed but just been for Christmas Lunch w...

Haven't stayed but just been for Christmas Lunch with a group of about 40. Always been superb food and service but today, if am afraid to say, was a shambles. Excellent food but no co-ordination in service. Starters came at different times, some people had finished before others were served. Main course was the same, meat was almost finished before the veg were served. Sweets the same. Coffee cold before the milk/cream/sugar served. Whatever has gone wrong? Someone needs to get a grip very quickly.