Unai Emery was encouraged with Arsenal's performance in Sunday's 1-0 win over Newcastle United.
Pierre-Emerick Aubameyang's second-half strike proved the difference in a sloppy encounter at St. James' Park.
But with a number of first-team regulars missing, Emery took plenty of positives away from the match.
"It's a very good three points," the Spaniard told Sky Sports.
"We played a very solid game and controlled the game, but we can improve more because, in the first half, for example, we lost a few balls in the middle and gifted them some chances.
"The second half was quite similar but we scored and that was a very important victory for our confidence because we played with some young players to give them a chance to improve, to give them minutes with us and I think competitive action is important."
