I dunno. We always 'struggle', we struggled against Mexico, they raped us for possession and we still put them away. I don't see the need to try and change the way we play just because our possession numbers aren't great.
Inter Milan, Champions League final possession was about 33%, but they got the job done.
I don't see anyone beyond Spain that will walk over us, because they actually have the ability to make and finish their chances. I'm just hoping someone else will knock them out.