"Over the course of the next little while we have to figure out what we need to do to help these guys get better," Hitchcock said. "Whether it's personnel or whatever, we need to do whatever we can to help these guys get better."
The Oilers went 9-2-2 in Hitchcock's first 13 games but followed that with six straight losses in regulation to start a 5-13-2 stretch.
"It's been an insane season," McDavid said. "Good times and bad times. It's been a roller coaster. It's been emotionally challenging. It's been hard mentally to keep on going but we were always kind of right there. We were close and then we drifted away. That's the way it goes."
The 22-year-old center, who is in the first season of an eight-year, $100 million contract he signed July 5, 2017, made it clear such results will not be acceptable in the future.
"We want to play in the playoffs as a team. I personally want to play in the playoffs," said McDavid, who had nine points (five goals, four assists) in 13 postseason games in 2016-17, when the Oilers reached Game 7 of the Western Conference Second Round. "I'm not happy about it. It's going to be a long summer."
Edmonton's remaining games are at the Colorado Avalanche on Tuesday (9 p.m. ET; ALT, SNW, NHL.TV), home against the San Jose Sharks on Thursday and at the Calgary Flames on Saturday.
NHL.com correspondent Danny Webster contributed to this report