I hope there will be a HBR or some other case study done on Yellow, because the interplay between bad loans + union demands + poor management seems like something US businesses need to be more prepared for.
EDIT: All I'm pointing out here is that I don't think this can land squarely on union demands, which is what I think some of the press are making it out to be. The actual financial mismanagement of the company precedes anything the union was asking for (which in part, was for Yellow to live up to their previously agreed obligations)
All of the bad decisions they'd previously made out them in this position, but the union threatening to strike was the straw that broke their back- despite the union withdrawing the threat.
That last tidbit probably tells you all you need to know about how little chance the company had at surviving.