I'm giving Austin the benefit of the doubt for the timebeing based on him being a proven goalscorer. At Swindon, Burnley and QPR he was scoring roughly once every 2 games.
From what I remember of him at QPR, he was an instinctive scorer, fox in the box if you like, who anticipates chances and was clinical enough to get on the end of them. That's what he's got to do here. Maybe, he never had a great deal of pace so its pointless expecting him to perform sprints like Odemwingie.
We could use Zohore or HRK as our main striker, but I'm not aware that either of them ever were prolific goalscorers.
The centre forward slot is one obvious area in the team where there is alot of room for improvement. If we can get Gayle in, it should be a no-brainer, but if not, Austin is going to have to start delivering soon.