Sir Alex Ferguson was content to witness Manchester United's squad strength come to the fore in the 2-0 win over Charlton Athletic.
In a scrappy performance against the Premiership strugglers, headed goals from Park Ji-sung and Darren Fletcher ensured United remain six points clear at the top of the table.
Park had replaced the flu-ridden Cristiano Ronaldo in the team, while Fletcher took the place of the injured Michael Carrick, and Ferguson felt it was again important to see the depth at his disposal.
"There were parts of the game where we had good possession without any great threat in our game," Ferguson told Sky Sports News.
"We keep stressing this point that it's vital that the squad players get miles on the clock.
"When we need them, they will need that experience and games behind them, and it proved itself again today."
Charlton put up a gritty display at Old Trafford and Ferguson paid tribute to the visitors for their approach to the game.
He added: "Give credit to Charlton, they were one of the brighter teams of anyone who has been here.
"They showed that the manager has galvanised and organised them, and they had the confidence to play, which is very difficult when you are down at the bottom.
"A lot of teams come to Old Trafford and lack that confidence to go and express themselves. I thought they did very well and made it difficult for us.
"There wasn't any real goal threat, but when it's only 1-0, it only takes a second to lose a goal and that was worrying for me and everyone watching."
Fergie, are you serious??? this performance pleases you??
We are fortunate to have 6 pts lead..