Bayern were impressive but the 2nd and 3rd goal should not have stood.
I hope this game is an eye opener for Wenger, there's so much good organisation can do, but at the end of the day, height is very important on set pieces. Barca were at their best around 2008-2011 when they had the right combination of height, pace, skill and tactical organisation with Abidal at LB, Henry at LWF, Toure/Busquets in midfield and Keita regularly featuring too especially in away games.
Hope to see 2-3 6ft+ players apart from the 2 CBs in our team next season.