I don't get this 'fitness' thing. He is a professional footballer who has had a pre-season with Oxford Utd in a higher league and has not had a recent injury - so he should be fit enough. It is his style of play rather than his fitness. You could say the same about Angol and if you want a more independent comparison: Iyesden Christie, Chris Waddle etc.
Yes Danny Rose shows some people up when it comes to effort and determination, but it goes beyond that.
In my opinion Angol, Hemmings and Spencer aren't quite the strikers that we were hoping for. If it wasn't for Danny Rose playing unbelievably well at the moment, then the groundswell of opinion about our strikers would be a lot less tolerant than it is at the moment.
In short, I think that Hemmings and Angol need to improve.