 Since Grohl felt the songs were different from the band 's previous input and " had the potential to be something great " , he considered that instead of doing something like the last three albums , the band had to go out of " our own comfort zone " and " needed someone to push us out of there " . So Grohl decided to work again with Gil Norton , who produced the band 's second album The Colour and the Shape , citing how Norton taught the band of the importance of pre @-@ production and refining the composition , and claiming Norton 's " unconventional " approach " seems to capture the best of this band " , considering that with him " we 're not going to do a straightforward AC / DC record , he 's gonna make it different " . 
