Campbell sought his release from USC earlier this month after the NCAA slapped the Trojans with probation for multiple rules violations. A free agent of sorts, Campbell, who sent his release to West Virginia, Illinois, Cincinnati, Louisville, Tulsa, Arkansas and Ole Miss, has two years of eligibility remaining and will be able to play for the Cardinals this coming season.
"I came here three years ago and it wasn't a good fit for me," Campbell told InsideTheVille.com. "But with Coach [Charlie] Strong being the new coach there he's bringing a whole different swag and style of football to Louisville. Just talking to the coaches the past couple days I can see the winning mentality they have and the championship in the making."
Campbell is visiting Louisville this weekend and said the opportunity to play for Strong was a major factor in his decision to play for the Cardinals.
Louisville returns just one starter at linebacker from last season and Campbell should have plenty of opportunity to earn significant playing time right away. Campbell played in 17 games at USC, starting once as a sophomore against Washington State – a contest he recorded eight tackles.
"They run a pro-style defense like Coach [Pete] Carroll does so I'll fit in," Campbell said. "I watched film with the defensive coordinator and I was calling out the plays, adjustments and audibles and making all the right calls. So they liked that I'm already familiar with their defense.
"They need someone who can play sideline to sideline and dominate the field and I feel that I'm the guy that can fill that void. They have a lot of great guys on defense already and I'm happy to go in there and work hard at my spot."
Though Campbell said he has not signed with UofL, it appears a formality after his visit this weekend.
"I haven't signed anything yet but my mind is made up," Campbell said. "I told Coach Strong and told my parents this is where I want to go. My facebook and twitter have been blowing up all day and I'm telling everybody this is where I want to go. Coaches [from other schools] are calling me but my mind is made up."
Friday night, Campbell got a sense of Louisville while attending night racing at Churchill Downs with Strong and several UofL players. Campbell liked what he saw and said he felt right at home in Louisville.
"Louisville's a big place," Campbell said. "The people in Louisville are great, they're passionate about football and the people were great last night. Coach Strong has a lot of support here, the people love him and they were taking pictures with him. Louisville fans want to take pride in their football [program] and Coach Strong is already making the right moves to do that."
Campbell was hosted on his visit by senior tight end Cameron Graham, who also came to Louisville from California.
"I was just vibing with them and everybody was real cool," Campbell said. "Everybody wants to win and I can tell that everybody is working hard and believes they can bring back the program."
Campbell was set to graduate from USC in the fall with a degree in public policy, a program Louisville doesn't offer. Campbell said he'll enroll at Louisville during the second summer session in July and, while UofL doesn't offer the same major, said he'll still be able to graduate on time.
"I had other [visits] set up but after I came here and talked to Coach Strong and decided on Louisville," Campbell said. "I need someone that's going to push me and make me better and that's what Coach Strong is going to do for me. I just want to get back here and get ready for the first game against Kentucky."