We had an unusually good year with injuries. We need Podolski-quality players on the bench and quite often injuries will mean they could be starters for most games.
I would take Michu. A creative striker (a poor man's bergy) would be perfect and from what I'm reading, Jovetic seems to be a better fit.
A prolific goalscorer would be nice. But we already have our 30+ goal a season striker. Theo could be truly phenomenal up front. He lacks some basic skills but if we create a role for him to be the poacher, he will make it worth our while. I'm sure of it. That muppet will be worth every penny of the ยฃ100k contract. There's a reason Wenger caved in for that greedy shit.