You are just waffling now, completely different situations. Pep even said last season how walker just doesnt suit the team, barely played him, walker tried to leave in the summer, he tried to convince him to stay and now he is undroppable after every terrible performance even against teams we don't need walker to play.
You are also delusional if you think walker has his "head straight", he's looked distracted throughout the entire season, and why wouldn't he be distracted, look at his personal life.