Not easy hope at other games actually with Plzen have bad record in Champion League loss in four games, I think could focus on domestic league for Barcelona because can't talk more at champion league exactly in group stage.
But of course it's not over yet considering there are two decisive matches for Inter and Barcelona to qualify for the next round. Barcelona may be able to beat Plzen, but of course it is difficult to beat Bayern Munich. But anything can happen, it wouldn't be a coincidence if Barcelona really fought for a place.
There are other rumors that I know but this is not necessarily true, if Xavi fails to win the match in El Clasico and Champions League with Bayern Munich then Xavi will be threatened as his coach, but in my opinion it is not sure to happen because in LaLiga Xavi has proven that Barcelona are at their best it's just that in the Champions League the less fortunate.