I don't understand what you mean by repeatedly saying there's was no plan B. In the second half we went to a back 3 and put a target man on to play long balls to. Not pretty and didn't work but vastly different from plan A from the first half when it was 11 vs 11.
I've agreed with most of your criticism of Pedro from way back to the end of last season but I genuinely believe we need to cut him some slack for yesterday. For me it was 100% the ref that cost us and the club needs to highlight what in my opinion was blatant cheating.
We can discuss all day the tactics and personell in the second half but I don't think any changes would have worked as that ref was never going to allow us to take anything out of the game. It stinks.