Last season, Regis Le Bris appeared comfortable leaning on a relatively small core of players. That can work across one major domestic campaign. It becomes far harder when Europa League nights are added to the mix, especially with travel, recovery and the emotional swing between Thursday and Sunday.
O'Nien did not dodge that issue. “There are going to be more games and more squad rotation, so we’re going to need everybody for every single minute due to the heavier load,” he said. That feels like the key point. Sunderland do not just need a stronger best XI; they need a stronger squad.
When a club is growing quickly, academy players stop being a nice story and start becoming part of the solution. Chris Rigg looks central to that conversation. He is still young, but Le Bris clearly believes the midfielder matured as last season went on.
“The difference was clear,” Le Bris said. “At the beginning of the season he was a bit erratic, and progressively he showed that he was able to keep the ball under pressure.”
That is the sort of development Sunderland need more of. Not every gap can be filled in the market. Sometimes depth has to come from within.
There is also a broader picture here. Sunderland are trying to grow commercially without losing the identity that carried them back. Interim chief executive Tom Burwell put it bluntly: “We very clearly believe that Sunderland AFC can be the Premier League team of choice in Tennessee.”
That ambition is understandable. But on the pitch, growth will still be judged by whether Le Bris can keep his squad fresh enough to survive two fronts. The next few months should reveal whether Sunderland are merely enjoying a rise - or are truly built to sustain one.