Disagree, ideally he should be 4th choice behind a new cb, maybe zouma and/or someone else, zouma/ JCS or Tomori.
He has become too slow and has shown a few deficits during the season, don't get me wrong, i'm delighted he 's going to stay but his role in the team should be definitely reduced as being the voice of reason and experience for next season.
This is the perfect opportunity to blood one cb from the youth team, and with Terry staying we could think about getting rid of Cahill. At least in a perfect world. Guess we'll see what happens, fingers crossed.