I'm not sure I'm being the naive one here Tobes. How often have you been listening to Koeman? The last 4 weeks since you've been sniffing around? This man says it how it is. He is often too honest, but honest he is. Ask him a question and you get a straight answer.
I don't suppose there is any chance that your naivety missed that maybe his agent was keeping the "No" to Everton til last? I'm not doubting that is when Everton were told that as you clearly know some one close to the action there, but that doesn't mean that is when he decided.
Ever been dumped by a girl and then were surprised to know that everyone already knew?