Players like Amauri, Iaquinta, Salihamidzic, Legro etc. maybe not very useful to use a starters or even on the pitch at all, but they are very important to maintain the core of the team. We have an identity and Amauri, whether we like it or not, is part of that identity. If we keep throwing out everyone in the team who under performs then in two years, we'll have a completely new team.
Then we become like Madrid or Inter under Hector Cooper. It's a terrible strategy and it will do us more harm than good.
So I say, keep Amauri and co. in order to maintain some balance in the team.
I hope you realize by now I'm just fucking around.