Why don’t [union leaders] be selective and call out only those members who can cause damage to the government? There are places in the public sector that could go on strike for years and it would make little difference.”
– Letter in the New Statesman, 12 December 2011
Assuming the unions were to agree with that—which I suspect they dare not, and is indeed one strategic reason why one-day strikes are preferred—in what places in the public sector would staff striking for a significant period damage the government more than the unions? Maybe there are some. But it is hard to think of any.