Do t get the logic. They are both capable of leaving when they want, and if they both decided to leave at the same time who or what is to stop them?
Nothing. Other than maybe the sense of wanting to do what might be right for the club as well. Which is what people using this logic are largely banking on. Based probably on their own personalities, and how they see the personalities of Pep and Txiki, over their notable spell here.
Honestly, that's begs a huge question. When would be the right time for Pep to leave? There
is no right time. We'd like him to stay forever. Why? Because we know that we'll never get another coach like him. We'll get someone good, very probably, because the club is well run.
What is really exceptional about Pep — unheard of, in fact — is that in a nearly all cases he has improved the players who've come here. From being good, they've become very good. From being very good, they've become brilliant. And several times, from being ordinary, they've become fair players, at their level.
As much as anyone, I'd be over the moon if Pep renewed. If he doesn't, he goes with my homage, my admiration, and my deepest thanks. (It would be presumptuous to say he goes with my blessing). He's stayed a lot longer with us than with either of his other two clubs. And he's given us more than we could have dreamed of.
I don't think that Txiki's going makes anything a foregone conclusion, by the way. In either direction. But it's a good story for the media to spin it.