all together. I can see if there was concern over not knowing who would start because then you don't know to shift line or not, or by how much...but if the rumor had been credible, then Book would be suspended so they know who would start, Wimbush. My doubt is that going from Book to Wimbush would be enough to make them take it off all together as fedman said, or would they just change the line significantly.
I'm no betting expert, but just going by what I recall seeing in similar situations in the past, my thought is they would slide the line not take it off.