I think for games against Nottingham and Sheffield we need to adopt a 'horses for courses' approach even if it means changing the established line combinations, just to give them something to think about outside of their 'negative' game plan.
I am all for going with tried and trusted line combos especially if they are successful, but against experienced coaches like Paul Thomson and Corey Nielsen you need to give them something extra to think about and perhaps even throw them a 'curve ball' to use a baseball analogy.