JACKSONVILLE – Liam Coen left no doubt Sunday.

The Jaguars are making too many mistakes, particularly too many avoidable penalties, and the first-year head coach couldn't have been clearer when speaking about the subject.

"It's on me," he said. "It's an undisciplined operation at the moment, and it's on me.

"And it has to get fixed."

The Jaguars, after three consecutive victories, lost to the Seattle Seahawks, 20-12, at EverBank Stadium Sunday. It was a game of missed opportunities, with the Jaguars struggling to run, dropping passes late and struggling to protect quarterback Trevor Lawrence throughout.

As significantly, they committed 10 penalties for 76 yards.

"A lot of mistakes," said Lawrence, who completed 27 of 42 passes for 258 yards and two touchdowns with no interceptions. "A lot of self-inflicted wounds like we've talked about in the past. We've got to clean it up. We've got to be more detailed. We can't have so many penalties."

Added Lawrence, "It's just accountability, all of us looking ourselves in the mirror. It's on all of us. It's never on him (Coen). It's never on just one person. It's all of us taking accountability and fixing the things that we can control."

Lawrence, after being sacked six times in the first five games, was sacked seven times Sunday. The Seahawks were officially credited with seven hits on Lawrence, with estimating that the Seahawks pressured him 20-to-25 times.

Factoring in pass protection: Seven penalties on the Jaguars' offense, with five of those penalties creating situations in which the Jaguars needed 15 or more yards to convert a first down.

"We had a lot of drives where we started off negative, and it's hard to play in second- and third-and- long all game," Lawrence said. "That's the obvious. We're doing some things, some difficult things well. We're messing up the simple things and having a lot of penalties.

"It's hard to sustain drives when you keep going backwards. We have to look in the mirror and fix the problems that have really been there all year."

Coen called penalties the Jaguars' "Achilles heel at the moment" and said the team had what he called "a very honest conversation" about the issue in the post-game locker room.

"That was the conversation we just had," Coen said.

The Jaguars, after committing 38 penalties for 308 yards in the first four games of the season, had a season-low four penalties for 25 yards in a 31-28 victory over the Kansas City Chiefs in Jacksonville last Monday.

Coen said what hurt as much Sunday as the number of penalties was the timing, with an illegal formation penalty on right tackle Anton Harrison in the second quarter negating a nine-yard run by running back Travis Etienne Jr. and another illegal formation penalty on Harrison in the second quarter negating a seven-yard reception by Etienne.

An offsides penalty on rookie wide receiver/defensive back Travis Hunter negated a 46-yard touchdown pass from Lawrence to wide receiver Brian Thomas Jr..

"We beat ourselves more than anything and we just need to hone in on details," Hunter said, with Thomas adding: "Every time we'd get a good play or get a drive started, I feel like we would set ourselves back with a penalty or something.

"We had a good game plan," Thomas said. "Some of the stuff we were doing was working. We've just got to quit beating ourselves. That was really it."

Coen called a game against the Los Angeles Rams at Wembley Stadium in London Sunday "a great opportunity to get it fixed.

"We're going on the road, we're flying to another country, being together as a group," Coen said. "We'll look ourselves in the mirror and try to figure out from an operation and habit standpoint what is standing in our way, because right now, it's us."

NOTABLE

• Jaguars linebacker Devin Lloyd, the AFC's Defensive Player of the Month for September, started and played relatively sparingly in the second half Sunday. "Devin had a little bit something get a little tight on him," Coen said. "He played the first half, came in in the second half. It tightened up on him. He tried to loosen up. He tried to go in the second half and just couldn't do it. We made that decision to ultimately kind of protect him that way."

NOTABLE

• Jaguars kicker Cam Little, after converting 10 of 12 field goals and 13 of 13 extra points in the first five games of the regular season, missed both of his placement attempts Sunday – an extra point in the first quarter and a 50-yard wide right with :58 remaining in the first half. "We didn't help him," Coen said. "We took a sack on the prior play [to the missed field goal] that knocked it back about eight or nine yards. He knows he has to make kicks and he's as hard on himself as anybody. I still have a lot of trust and confidence in Cam. We just have to go make some of these kicks in real live games."