Understandable. Got nothing against Everton at all. You guys do have to realise though that you got Koeman because no other top 6 club wanted him and you were the ones who could throw the money at him when we chose not to. He's confirmed this in interviews since so it's not a case of equal terms being offered and him choosing you over us instead.
I'm fully aware we're a selling club and no I don't enjoy it. However players like van Dijk are fully out of our league as a club, therefore they'll move on to clubs with Champions League football, not a sideways or slightly inclined step. Koeman was evidently not out of our league and therefore moved to a team who are marginally better than ourselves. Players don't make sideways steps like these, Koeman did because you offered a lot more money and he couldn't agree terms with us going into his final year.
Anyway, apologies for starting on the wind-up. Enjoyed that a lot today!