17 sources who may all be drawing from the same source, or at least (inadvertently) confirming each other (e.g. source 2 has heard vague information from source 4 and 6, and reports that to Bloomberg, source 5 has then heard vague information from source 2 and 4, and reports that to Bloomberg). Without more information, I'm not sure we can really say it's more than one source (Bloomberg).