After the first leg of the quarter finals of the Coupe de France (season 29) Angers won Lille 3-2 with a match that Angers dominated, the second Leg, it was a different story, “something” happened that things changed completely, the result was 22-0!!! in favor of Lille http://www.rubysoccer.com/game/match_report/1532934
It is apparent that Angers used all young players and used an unusual formation (4-2-4) and also used an AD with 66 Keeper rating, most strange is that this is the first time that Shawn Larsson uses this formation.

I know there might not be nothing wrong with this but I just found it odd.

He probably used the formation he normally uses for friendlies, either by mistake, or cause he thought he would lose anyway and wanted to improve the young players.