Charlie, I totally agree, they needed the boss to make it look legit. My take on EB's 911 call however is that I think she sounded "scared and anxious", but not because of the fire, because they had set a plan in action. I honestly think they chickened out. Maybe because of the reaction they got from LE and the FD, or even the boss, but whatever the reason, they didn't got through with it. (Maybe the boss even told LE that EB was a drama queen..) Kinda like EB saying "nothing has gone the way"...blah blah blah.
I'm starting to think that the reason she may have sounded "scared and anxious" is because AB decided, on his own, to go ahead with a previous kidnapping plan. And I'm thinking the fire might not have been a part of the previous plan.
Think about these things:
1). An employee of the restaurant next door said that he saw
someone sitting on the back porch playing with a lighter. He doesn't say he saw 2 people out there...just one.
2). In Adam Baker's 911 missing child call, he says, "We woke up." He then reverses himself and says, "The dog woke ME up." Not, "the dog woke US up." So, was EB sleeping, and AB had to wake her up? If so, just how long WAS she sleeping before he woke her up? Not out of the realm of possibility that it was AB sitting outside on the porch playing with a lighter. If they had BOTH been up, why did the employee only see 1 person sitting there?
3). If we look at EB saying in her jailhouse letter that nothing went according to plan, then perhaps she's telling the truth. Perhaps the kidnapping/ransom note was a previous plan they abandoned. Perhaps they fought over the plan...EB arguing that it wouldn't work. They'd get caught. AB arguing that they had to do something, and this was all they had! Maybe, in the end, AB panicked because they hadn't come up with an alternate plan, so he, on his own, reverts back to the kidnapping plan, grabs the note she had already written, and add's the fire at random. Maybe, just maybe, he did that to set EB up to take the fall for everything. And maybe THAT'S why we see her in the video pointing at SOMEONE angrily, and saying something to the effect of, "This is BS!" or " I'm NOT taking the fall for this!"
It's not out of the realm of possiblility, imo.