I want to rephrase this sentence:

> 
> A challenge that it needs to address is how to best
>  perform feature selection.
> 
> 
> 

If the sentence looks like this, how to rephrase it:

> 
> A challenge that it needs to address is how to best
>  perform feature selection in order to ...
> 
> 
> 

it refers to a new method. Can anyone give me a help?