Arsenal topped the table for much of this season, but collapsed in the last two months as Manchester City won the title with three games to spare after an incredible run.
"We have to nail everything we do . Seek for excellence in everything we touch and participate," Arteta told reporters ahead of Sunday's home game against Wolverhampton Wanderers. "In order to do that, we have a promising plan to reflect, take a step back, make sure this is the right one, go again with more determination and hunger in our tummies to go again."
Arteta described Saka as a"crucial player" for them."He represents our club in the best possible way," he said."He is part of the plan. At the moment, we are in a strong position to be able to do that.