What struck me was the fact that in that rather crucial scene in which House seems to realise that he is quite happy with his team leaving, it is not Wilson, but Esteban he 'celebrates' with. Any ideas as to why TPTB took that road? It seemed like such a typical H-W scene. I can think of three reasons: A) As boffle mentioned, it shows that he's capable to relating to new people. B) Wilson just spent a few weeks telling House that he should change and perhaps there was still some conflict there. And C) TPTB probably felt that the POtW story needed some closure.