They'd have to spend an outrageous amount on VvD after he just signed a what, 5 year deal with us? It's not like Koeman can just stroll back into SMS and bag up the talent he wants, it won't be quite so easy as that.
The point about Koeman seeing all our plans and transfer targets is a good one though. The snake was shown everything by Saints and he now has all that knowledge to take to Everton so that's annoying. Doesn't mean those targets would rather join them though... a Europe League campaign at a club moving upwards season upon season, or a mid-table battle with a club on the way down?