From the part of the Arsenal match that i watched, i thought Schalke stiffled them very well with the 2 defensive midfielders, which is becoming the basic method of beating Arsenal. They're lacking a striker and the passing wasn't quick enough. Thought Schalke were average and all. Mind you their group is one of the easiest, so both should go through.
Turning over to see Man City v Ajax. After Citeh scored, i couldn't see a way Ajax would get back into the match. They seemed more interested in passing it from side to side and then backwards, which was dull to watch and is becoming the norm in European and International football and it bores me to death. When they eventually got into a shooting position, it was a poor effort or just rushed. I really didn't see them doing anything against Citeh, but fair play to them, they pulled it off.