"Do your job."
Per the Detroit Free Press, that message is prevalent within the walls of the team's facility.
"It always comes down to being accountable to your teammates and so many times you get caught up in everything else going on," Lions quarterback -- and former Patriot -- Matt Cassel said, per the newspaper. "And I remember as a young guy, you always worry about, 'Well, who's getting the reps,' and this, that and the other, and it takes you and distracts you away from just doing your job.
"And that's the best part about this type of program, is the best guys are going to play and if you do your job and do it right you're going to be on the field, and they've shown that time and time again. They don't care if you're a free agent, they don't care if you're a fifth-round draft pick or a first-round draft [pick] if you're going to go out and do your job and make us better. It's all about winning."
Patricia was hired by the Lions on Feb. 5, one day after New England fell to the Philadelphia Eagles in Super Bowl LII. Patricia previously served as defensive coordinator of the Patriots.
He replaced Jim Caldwell, who was fired on Jan. 11 after posting a 36-28 record in four seasons with the club.
Patricia joined the Lions after spending the last 14 seasons with New England. During his tenure working for head coach Bill Belichick, the Patriots won three of their five Super Bowl titles in addition to six AFC titles and 13 AFC East Division championships.
A former aeronautical engineering major at Rensselaer Polytechnic Institute, Patricia spent the previous six seasons as New England's defensive coordinator. He also was the team's safeties coach in 2011 and the linebackers coach from 2006-2010 after spending his first two seasons with New England as an offensive assistant and an assistant offensive line coach.
In Patricia's stint as defensive coordinator, the Patriots ranked second in points allowed (19.2) and takeaways (157).
New England's defense also finished among the top 10 in points allowed during 11 of his 12 seasons.