Chinese Whispers

Okay! This is complicated, so please pay attention. I cannot mention names (much) in case I get accused again of "breaching confidentiality." I shall be asking questions at the end! You may take notes:

Today at work was marked by one major misunderstanding on the part of the most junior of my team. My new boss asked me for the numbers of the guards who are on their rest days, as we needed someone to cover tonight's shift. He was surprised when I told him we didn't have any contact numbers (my old boss used to have them all in his mobile, or head office used to call them).
I advised him that my young colleague would have the number of one of the other supervisors who was off. My new boss therefore went and found him and asked him to call and see if this other supervisor could work. It turns out that he misunderstood who this supervisor would be covering for. He thought it would be for the night supervisor and so told the rest-day supervisor that the rostered night supervisor had blown out. The rest-day supervisor declined to work, but phoned our old boss (who is currently working at head office) that the night supervisor had blown out, he phoned my control room to speak to me, but I was elsewhere. He left a message that the night supervisor had blown out and for me to call him. The guy who took the message told someone else who then, in turn told me. The guy who took the message has the same first name as my new boss, so when I was told that "Steve says [the night supervisor] has blown out," I assumed this meant my new boss and so when I mentioned it in passing to him, assuming he knew, he was really pissed off!
Apparently he couldn't get hold of any schedulers, and they never returned any of his voicemail messages.
It wasn't until a few hours later, speaking to my young colleague that I worked out what had happened and informed my new boss. He had just finished shouting and swearing at the schedulers that he had finally got hold of for not telling him about the blow out and not calling him back. Luckily he then laughed about it (I think he was just relieved that we were now only 1 guard down for tonight, not 2).
I had a word with my young "friend," about this and another matter I had to pull him up on. And a couple of other people had words too.
Other than this though, not much happened at work today.

Time for the questions:
1) Who's on first?