I actually think he could be more useful in this current set-up working off short-passes and trickery from Cazorla and Oxlade. But the issue is always about whether his attacking exploits out-weigh his lack of defensive contribution. I'm in favour of having him as a 3rd (back-up) striker because I think he still has goals in him. He took on that role rather well when we played him as a lone forward at Anfield and during some other games in that period.
Still, he could've been much more if he was bothered. That's the most disappointing part of it.