Jamie Carragher has given Sunderland supporters a warning for the future with his comments on Sky Sports.
Carragher was analysing Sunderland's 1-0 win over Newcastle United at the weekend on Monday Night Football, and he is refusing to get carried away with the result.
The former Liverpool defender admits that it was a huge victory for the side, but he says that the task for Sunderland isn't just staying up, but moving forward after that.
The Black Cats have narrowly avoided relegation in the past two seasons, only to find themselves in similar trouble for the next campaign and Carragher believes that their biggest challenge will be kicking on if Advocaat does guide them to safety this season.
"Dick Advocaat has come in and got that massive result, but we've seen it before," he said. "Gus Poyet and Paolo Di Canio came in and got massive results, and kept them up, but whenever Sunderland have made that change they've never kicked on from there."
Sunderland seem to be perennial relegation strugglers at the moment, but they will be determined to have a more comfortable year should they remain in the Premier League next season.
At the moment the Wearsiders are three points above the drop, but their safety is far from secure and they will need to build on their win over Newcastle.
For now, though, the mood around the Stadium of Light is a positive one and Gary Neville believes that the result over Newcastle could be huge for them.
"They needed this desperately," he said. "Dick Advocaat needed it. It was a great result for them, which has become the norm against Newcastle in these last couple of years. It's a massive result for them and gives them confidence."