a) the section of the party for whom the only policies and allied pronouncements which are valid which are considered ‘popular’ by the current media and the immediacy of its opinion polls, and are thus more or less totally dependent on political marketing

b) the section of the party which has a conviction that policies and allied pronouncements may have benefit for the party in the longer term through a policy making-people benefiting-policy becoming popular-new policies become feasible feedback cycle, and which is less dependent on political markeing in a wholly unfavourable media environment.

This may the same fault lines as the NL/SD ones you suggest.

Interesting to see that, now the old contradiction is being resolved, however unsatisfactorily for the party, Brown can now be portrayed as ‘policy-free’, although the ‘serious’[ policies is what he was lauded for in earlier days, not least because he was defined by his ‘otherness’ to the policy-lite but charisma-laden Blair. Is the next stage for the media to portray a new state-lelve contradiction between policy-lite Labour and policy-worthy Tories, however little material substance there is in that?