Pep has been tinkering all over the pitch due to injuries, players needing a rest, twat agents, suspension, experiments, and tactical reasons.
Either way he might just wanna look at the teams he put out when we did play well at home and stick to that formation as much as possible. If he can't figure that one out he might consider to consult his 12 men management team around him.
I know I sound a bit cynical but I am a huge Pep fan. Rhis season will learn him more than anything else in his career, but now he seems to lack confidence explaining most of the tinkering.
I expect a win and tbh I expect 12 points out of remaining 4. The way we do it? I don't care. But it'll lay some sort of foundation for next season and hopefully than we can see a bit more of the beautiful football Pep makes his teams play.