Who’d be in your Arsenal XI to take on West Brom at The Hawthorns today?

Ok I’m going to keep this post relatively short and sweet. It’s the final day of the season and, realistically, we need to bag all three points against West Brom at The Hawthorns later this afternoon to guarantee third spot and an automatic place in the Champions League next season.
So I ask for the last time this season – what should our starting line-up look like?
It’s a massive fixture, thus the players chosen by Arsene Wenger must be up to the challenge.
Here is how I think Wenger should set out his team:
Szczesny
Coquelin         Koscielny         Vermaelen         Gibbs
Song          Chamberlain
Gervinho                           ...