I think the recent strike was tactically wrong. What the leadership should be doing of all the Unions is to put maximum pressure on the employers.
How do they do this?
They need to ask all union members for a levy on their wages - could be £10 per month as an example.
This money should then be given to workers who will clearly cause a lot of disruption or revenue generation issues in the case of local government, and so forth. So that the bin men could come out for 1/2 weeks at a time if required on full strike pay, or Council Tax workers could screw up revenue generation for 1/2 weeks at a time on full strike pay.
This is the way forward, it will gain maximum support from membership and cause most useful disruption. As such be more likely to be effective, which is surely the main thing.
p.s - It is ridiculous to see Unite and Unison under writing New Labour, whilst NL are stabbing public sector workers in particular in the back! Pathetic union non-leadership yet again.