He can probably afford to be a star, he'll get his wages no matter what.
In the far off bad days, I was a shop steward, then later moving to be an area convenor for the union. (EETPU)
The biggest part of my job was settling pay disputes.
Striking was the last weapon to use but more importantly - the timing of it.
Mick Lynch has got it absolutely right. Maximum carnage.
And in case you think my first sentence was being flippant - the same was said to me many times when 'withdrawing of labour' was being discussed.