I don't agree with you on Zahovich and here's why:
from the information I've read and received from Portugal, Zahovich in Porto was, except an idol, an example of behavior. In the years he spent there he never (not even once) caused a single problem to his club. He was always a perfect professional. With all that being a fact, I don't think that anyone - ANYONE - would have second thoughts about his transfer, nobody could ever see all this coming. I don't know why he's had this behavior during the year, I reckon because he really wanted to go to Valencia and watching what Valencia has acomplished this year, his regret is growing.
Still, having accepted to be transfered to Olympiakos, his behavior is inexcusable.