Do you notice players that left Arsenal, most of their team going further/doing better than Arsenal in the CL?

If Arsenal fielded a strong team against Braga away then we should have won the group and easily beat Roma to get into the quarterfinals. But Wenger decided not to and also in the Shakhtar game where he even played some kid called Eastmond! We could've drawn that game. Arsenal are capable of beating any team in the Champions League over 2 legs except for Barcelona and they even came close against them! The problem with Arsenals group was Partizan since they lost every game meaning that the group was more competitive with the top 3 teams in it.