Doesn't seem that way. Cast has always publicly said that he wants the team to win and he wants it now. It never appeared to me that Cast was going to have the patience for another 5-7 rebuilding program that might never produce a division title. Didn't Cast say that if the team's W-L didn't improve, heads were going to roll? I think he said that in 2007.
I find it hard to believe Wayne misunderstood Cast's marching orders.
In fact, on his way out, Wayne said he was proud of himself for not trading any prospects to improve the immediate future of the team. Seems like Wayne had his own vision of the Reds which he knew was different from Cast's.
However, if you have any basis for your claim that Cast decided to change his mind in the middle of Wayne's plan, I'd like to hear it.